This is a list of seas of the

World Ocean The ocean (also the sea or the world ocean) is the body of salt water that covers approximately 70.8% of the surface of Earth and contains 97% of Earth's water. An ocean can also refer to any of the large bodies of water into which the worl ...

, including marginal seas, areas of water, various gulfs, bights, bays, and straits.

Terminology

Ocean The ocean (also the sea or the world ocean) is the body of salt water that covers approximately 70.8% of the surface of Earth and contains 97% of Earth's water. An ocean can also refer to any of the large bodies of water into which the wo ...

– the four to seven largest named bodies of water in the World Ocean, all of which have "Ocean" in the name. See Borders of the oceans for details. * Sea has several definitions: ** A marginal sea is a division of an ocean, partially enclosed by

island An island (or isle) is an isolated piece of habitat that is surrounded by a dramatically different habitat, such as water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island ...

archipelago An archipelago ( ), sometimes called an island group or island chain, is a chain, cluster, or collection of islands, or sometimes a sea containing a small number of scattered islands. Examples of archipelagos include: the Indonesian Arc ...

s, or peninsulas, adjacent to or widely open to the open ocean at the surface, and/or bounded by

submarine ridge A mid-ocean ridge (MOR) is a seafloor mountain system formed by plate tectonics. It typically has a depth of about and rises about above the deepest portion of an ocean basin. This feature is where seafloor spreading takes place along a diverg ...

s on the sea floor. ** A division of an ocean, delineated by landforms, currents (e.g., Sargasso Sea), or specific latitude or longitude boundaries. This includes but is not limited to marginal seas, and this is the definition used for inclusion in this list. ** The World Ocean. For example, the Law of the Sea states that all of the World Ocean is "sea", and this is also common usage for "the sea". ** Any large body of water with "Sea" in the name, including lakes. *

River A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of w ...

– a narrow strip of water that flows over land from a higher elevation to a lower one *

Tributary A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drai ...

– a small river that flows into a larger one *

Estuary An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environm ...

– the piece of a river that flows into the sea or ocean * Strait – a narrow area of water connecting two wider areas of water, also sometimes known as a passage * Channel – usually wider than a strait * Passage – connects waters between islands, also sometimes known as a strait *

Canal Canals or artificial waterways are waterways or engineered channels built for drainage management (e.g. flood control and irrigation) or for conveyancing water transport vehicles (e.g. water taxi). They carry free, calm surface flo ...

– a man-made channel *

Fjard A fjard ( sv, fjärd, ) is a large open space of water between groups of islands or mainland in archipelagos. Fjards can be found along sea coasts, in freshwater lakes or rivers. Fjard and fjord were originally the same word with the general mean ...

– a large open water between groups of islands There are several terms used for bulges of ocean that result from indentations of land, which overlap in definition, and which are not consistently differentiated: * Bay – generic term; though most features with "Bay" in the name are small, some are very large *

Gulf A gulf is a large inlet from the ocean into the landmass, typically with a narrower opening than a bay, but that is not observable in all geographic areas so named. The term gulf was traditionally used for large highly-indented navigable bodies ...

– a very large bay, often a top-level division of an ocean or sea *

Fjord In physical geography, a fjord or fiord () is a long, narrow inlet with steep sides or cliffs, created by a glacier. Fjords exist on the coasts of Alaska, Antarctica, British Columbia, Chile, Denmark, Förden and East Jutland Fjorde, Germany, ...

– a long bay with steep sides, typically formed by a

glacier A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires distinguishing features, such as ...

Bight The word is derived from Old English ''byht'' (“bend, angle, corner; bay, bight”). In modern English, bight may refer to: * Bight (geography), recess of a coast, bay, or other curved feature * Bight (knot), a curved section, slack part, or loo ...

– a bay that is typically shallower than a sound *

Sound In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the ''reception'' of such waves and their ''perception'' b ...

– a large, wide bay which is typically deeper than a bight, or a strait *

Cove A cove is a small type of bay or coastal inlet. Coves usually have narrow, restricted entrances, are often circular or oval, and are often situated within a larger bay. Small, narrow, sheltered bays, inlets, creeks, or recesses in a coast are o ...

– a small, typically sheltered bay with a relatively narrow entrance * Inlet – a narrow and long bay similar to a land peninsula, but adjoining the sea *

Polynya A polynya () is an area of open water surrounded by sea ice. It is now used as a geographical term for an area of unfrozen seawater within otherwise contiguous pack ice or fast ice. It is a loanword from the Russian полынья (), which r ...

– least used of these terms, a patch of water surrounded by ice Many features could be considered to be more than one of these, and all of these terms are used in

place names Toponymy, toponymics, or toponomastics is the study of ''toponyms'' (proper names of places, also known as place names and geographic names), including their origins, meanings, usage and types. Toponym is the general term for a proper name of ...

inconsistently; especially bays, gulfs, and bights, which can be very large or very small. This list includes large areas of water no matter the term used in the name.

Largest seas by area

The largest terrestrial seas are: # Philippine Sea – 5.695 million km² # Coral Sea – 4.791 million km² #

American Mediterranean Sea The American Mediterranean Sea is a scientific name for the mediterranean dilution basin which includes the Caribbean Sea and the Gulf of Mexico. The name, which has been employed particularly by German oceanographers, is not recognized by the ...

– 4.200 million km² #

Arabian Sea The Arabian Sea ( ar, اَلْبَحرْ ٱلْعَرَبِيُّ, Al-Bahr al-ˁArabī) is a region of the northern Indian Ocean bounded on the north by Pakistan, Iran and the Gulf of Oman, on the west by the Gulf of Aden, Guardafui Channel ...

– 3.862 million km² # Sargasso Sea – 3.5 million km² #

South China Sea The South China Sea is a marginal sea of the Western Pacific Ocean. It is bounded in the north by the shores of South China (hence the name), in the west by the Indochinese Peninsula, in the east by the islands of Taiwan and northwestern Phi ...

– 3.5 million km² #

Weddell Sea The Weddell Sea is part of the Southern Ocean and contains the Weddell Gyre. Its land boundaries are defined by the bay formed from the coasts of Coats Land and the Antarctic Peninsula. The easternmost point is Cape Norvegia at Princess Martha ...

– 2.8 million km² #

Caribbean Sea The Caribbean Sea ( es, Mar Caribe; french: Mer des Caraïbes; ht, Lanmè Karayib; jam, Kiaribiyan Sii; nl, Caraïbische Zee; pap, Laman Karibe) is a sea of the Atlantic Ocean in the tropics of the Western Hemisphere. It is bounded by Mexico ...

– 2.754 million km² #

Mediterranean Sea The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Western and Southern Europe and Anatolia, on the south by North Africa, and on the ...

– 2.510 million km² #

Gulf of Guinea The Gulf of Guinea is the northeasternmost part of the tropical Atlantic Ocean from Cape Lopez in Gabon, north and west to Cape Palmas in Liberia. The intersection of the Equator and Prime Meridian (zero degrees latitude and longitude) is in ...

– 2.35 million km² #

Tasman Sea The Tasman Sea ( Māori: ''Te Tai-o-Rēhua'', ) is a marginal sea of the South Pacific Ocean, situated between Australia and New Zealand. It measures about across and about from north to south. The sea was named after the Dutch explorer ...

– 2.3 million km² #

Bay of Bengal The Bay of Bengal is the northeastern part of the Indian Ocean, bounded on the west and northwest by India, on the north by Bangladesh, and on the east by Myanmar and the Andaman and Nicobar Islands of India. Its southern limit is a line betwee ...

– 2.172 million km² # Bering Sea – 2 million km² # Sea of Okhotsk – 1.583 million km² #

Gulf of Mexico The Gulf of Mexico ( es, Golfo de México) is an ocean basin and a marginal sea of the Atlantic Ocean, largely surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of the United ...

– 1.550 million km² #

Gulf of Alaska The Gulf of Alaska (Tlingit: ''Yéil T'ooch’'') is an arm of the Pacific Ocean defined by the curve of the southern coast of Alaska, stretching from the Alaska Peninsula and Kodiak Island in the west to the Alexander Archipelago in the east ...

– 1.533 million km² #

Barents Sea The Barents Sea ( , also ; no, Barentshavet, ; russian: Баренцево море, Barentsevo More) is a marginal sea of the Arctic Ocean, located off the northern coasts of Norway and Russia and divided between Norwegian and Russian territo ...

– 1.4 million km² #

Norwegian Sea The Norwegian Sea ( no, Norskehavet; is, Noregshaf; fo, Norskahavið) is a marginal sea, grouped with either the Atlantic Ocean or the Arctic Ocean, northwest of Norway between the North Sea and the Greenland Sea, adjoining the Barents Sea to ...

– 1.383 million km² # East China Sea – 1.249 million km² # Hudson Bay – 1.23 million km² # Greenland Sea – 1.205 million km² #

Somov Sea Somov Sea (, ''More Somova'') was a proposed name for part of the Southern Ocean. It would be located north of the easternmost part of the Antarctic subcontinent East Antarctica, north of Oates Coast, Victoria Land, and of George V Coast, betwee ...

– 1.15 million km² # Mar de Grau – 1.14 million km² #

Riiser-Larsen Sea The Riiser-Larsen Sea is one of the marginal seas located in the Southern Ocean off East Antarctica and south of the Indian Ocean. It is delimited Astrid Ridge in the west and the Gunnerus Ridge and the Kainanmaru Bank in the east. It is border ...

– 1.138 million km² #

Sea of Japan The Sea of Japan is the marginal sea between the Japanese archipelago, Sakhalin, the Korean Peninsula, and the mainland of the Russian Far East. The Japanese archipelago separates the sea from the Pacific Ocean. Like the Mediterranean Sea, i ...

– 1.05 million km² #

Argentine Sea The Argentine Sea ( es, Mar Argentino) is a marginal sea of the Atlantic Ocean adjacent to the southern tip of South America. It ranges from the mouth of the estuary of the Río de la Plata in the north (35th parallel south) to the Isla de los ...

– 1 million km² # East Siberian Sea – 987,000 km² #

Lazarev Sea The Lazarev Sea (, ''More Lazareva'') is a proposed name for a marginal sea of the Southern Ocean. It would be bordered by two proposals from a 2002 International Hydrographic Organization (IHO) draft, a King Haakon VII Sea to the west and a Ri ...

– 929,000 km² #

Kara Sea The Kara Sea (russian: Ка́рское мо́ре, ''Karskoye more'') is a marginal sea, separated from the Barents Sea to the west by the Kara Strait and Novaya Zemlya, and from the Laptev Sea to the east by the Severnaya Zemlya archipelago. ...

– 926,000 km² #

Scotia Sea The Scotia Sea is a sea located at the northern edge of the Southern Ocean at its boundary with the South Atlantic Ocean. It is bounded on the west by the Drake Passage and on the north, east, and south by the Scotia Arc, an undersea ridge and ...

– 900,000 km² #

Labrador Sea The Labrador Sea (French: ''mer du Labrador'', Danish: ''Labradorhavet'') is an arm of the North Atlantic Ocean between the Labrador Peninsula and Greenland. The sea is flanked by continental shelves to the southwest, northwest, and northeast. It ...

– 841,000 km² # Andaman Sea – 797,700 km² #

Laccadive Sea The Laccadive Sea or Lakshadweep Sea is a body of water bordering India (including its Lakshadweep islands), the Maldives, and Sri Lanka. It is located to the southwest of Karnataka, to the west of Kerala and to the south of Tamil Nadu. This war ...

– 786,000 km² #

Irminger Sea The Irminger Sea is a marginal sea of the North Atlantic Ocean. It is bordered to the west by southern Greenland, to the north by Iceland and the Denmark Strait, to the east by the Reykjanes Ridge (a northern part of the Mid-Atlantic Ridge), ...

– 780,000 km² #

Solomon Sea The Solomon Sea is a sea located within the Pacific Ocean. It lies between Papua New Guinea and Solomon Islands. Many major battles were fought there during World War II. Extent The International Hydrographic Organization defines the limits of ...

– 720,000 km² #

Mozambique Channel The Mozambique Channel (french: Canal du Mozambique, mg, Lakandranon'i Mozambika, pt, Canal de Moçambique) is an arm of the Indian Ocean located between the Southeast African countries of Madagascar and Mozambique. The channel is about lon ...

– 700,000 km² # Cosmonauts Sea – 699,000 km² #

Banda Sea The Banda Sea ( id, Laut Banda, pt, Mar de Banda, tet, Tasi Banda) is one of four seas that surround the Maluku Islands of Indonesia, connected to the Pacific Ocean, but surrounded by hundreds of islands, including Timor, as well as the Halma ...

– 695,000 km² # Baffin Bay – 689,000 km² #

Laptev Sea The Laptev Sea ( rus, мо́ре Ла́птевых, r=more Laptevykh; sah, Лаптевтар байҕаллара, translit=Laptevtar baỹğallara) is a marginal sea of the Arctic Ocean. It is located between the northern coast of Siberia, t ...

– 662,000 km² #

Arafura Sea The Arafura Sea (or Arafuru Sea) lies west of the Pacific Ocean, overlying the continental shelf between Australia and Western New Guinea (also called Papua), which is the Indonesian part of the Island of New Guinea. Geography The Arafura S ...

– 650,000 km² #

Ross Sea The Ross Sea is a deep bay of the Southern Ocean in Antarctica, between Victoria Land and Marie Byrd Land and within the Ross Embayment, and is the southernmost sea on Earth. It derives its name from the British explorer James Clark Ross who ...

– 637,000 km² # Chukchi Sea – 620,000 km² #

Timor Sea The Timor Sea ( id, Laut Timor, pt, Mar de Timor, tet, Tasi Mane or ) is a relatively shallow sea bounded to the north by the island of Timor, to the east by the Arafura Sea, and to the south by Australia. The sea contains a number of reefs ...

– 610,000 km² #

North Sea The North Sea lies between Great Britain, Norway, Denmark, Germany, the Netherlands and Belgium. An epeiric sea, epeiric sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the ...

– 575,000 km² #

Bellingshausen Sea The Bellingshausen Sea is an area along the west side of the Antarctic Peninsula between 57°18'W and 102°20'W, west of Alexander Island, east of Cape Flying Fish on Thurston Island, and south of Peter I Island (there the southern ''Vostokkys ...

– 487,000 km² # Beaufort Sea – 476,000 km² #

Red Sea The Red Sea ( ar, البحر الأحمر - بحر القلزم, translit=Modern: al-Baḥr al-ʾAḥmar, Medieval: Baḥr al-Qulzum; or ; Coptic: ⲫⲓⲟⲙ ⲛ̀ϩⲁϩ ''Phiom Enhah'' or ⲫⲓⲟⲙ ⲛ̀ϣⲁⲣⲓ ''Phiom ǹšari''; ...

– 438,000 km² #

Black Sea The Black Sea is a marginal mediterranean sea of the Atlantic Ocean lying between Europe and Asia, east of the Balkans, south of the East European Plain, west of the Caucasus, and north of Anatolia. It is bounded by Bulgaria, Georgia, Rom ...

– 436,000 km² # Gulf of Aden – 410,000 km² #

Yellow Sea The Yellow Sea is a marginal sea of the Western Pacific Ocean located between mainland China and the Korean Peninsula, and can be considered the northwestern part of the East China Sea. It is one of four seas named after common colour ter ...

– 380,000 km² #

Baltic Sea The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden and the North and Central European Plain. The sea stretches from 53°N to 66°N latitude and ...

– 377,000 km² #

Caspian Sea The Caspian Sea is the world's largest inland body of water, often described as the world's largest lake or a full-fledged sea. An endorheic basin, it lies between Europe and Asia; east of the Caucasus, west of the broad steppe of Central Asia ...

– 371,000 km² #

Libyan Sea The Libyan Sea ( Greek , Latin ''Libycum Mare'', Arabic البحر الليبي) is the portion of the Mediterranean Sea north of the African coast of ancient ''Libya'', i.e. Cyrenaica, and Marmarica (the coast of what is now eastern Libya ...

– 350,000 km² # Mawson Sea – 333,000 km² #

Levantine Sea The Levantine Sea (Arabic: بحر الشام, tr, Levanten Denizi, el, Θάλασσα του Λεβάντε) is the easternmost part of the Mediterranean Sea. Geography The Levantine Sea is bordered by Turkey in the north and north-east co ...

– 320,000 km² # Java Sea – 320,000 km² # Gulf of Thailand – 320,000 km² #

Celtic Sea The Celtic Sea ; cy, Y Môr Celtaidd ; kw, An Mor Keltek ; br, Ar Mor Keltiek ; french: La mer Celtique is the area of the Atlantic Ocean off the southern coast of Ireland bounded to the east by Saint George's Channel; other limits includ ...

– 300,000 km² # Gulf of Carpentaria – 300,000 km² #

Celebes Sea The Celebes Sea, (; ms, Laut Sulawesi, id, Laut Sulawesi, fil, Dagat Selebes) or Sulawesi Sea, of the western Pacific Ocean is bordered on the north by the Sulu Archipelago and Sulu Sea and Mindanao Island of the Philippines, on the east b ...

– 280,000 km² #

Tyrrhenian Sea The Tyrrhenian Sea (; it, Mar Tirreno , french: Mer Tyrrhénienne , sc, Mare Tirrenu, co, Mari Tirrenu, scn, Mari Tirrenu, nap, Mare Tirreno) is part of the Mediterranean Sea off the western coast of Italy. It is named for the Tyrrhenian pe ...

– 275,000 km² # Sulu Sea – 260,000 km² #

Cooperation Sea Cooperation Sea, also called Commonwealth Sea (erratum) or Sodruzhestvo Sea (russian: Море Содружества), is a proposed sea name for part of the Southern Ocean, between Enderby Land (the eastern limit of which is 59°34'E) and West I ...

– 258,000 km² #

Persian Gulf The Persian Gulf ( fa, خلیج فارس, translit=xalij-e fârs, lit=Gulf of Fars, ), sometimes called the ( ar, اَلْخَلِيْجُ ٱلْعَرَبِيُّ, Al-Khalīj al-ˁArabī), is a mediterranean sea in Western Asia. The bod ...

– 251,000 km² #

Flores Sea The Flores Sea covers of water in Indonesia. The sea is bounded on the north by the island of Celebes and on the south by Sunda Islands of Flores and Sumbawa. Geography The seas that border the Flores Sea are the Bali Sea (to the west), Java ...

– 240,000 km² #

Gulf of Saint Lawrence , image = Baie de la Tour.jpg , alt = , caption = Gulf of St. Lawrence from Anticosti National Park, Quebec , image_bathymetry = Golfe Saint-Laurent Depths fr.svg , alt_bathymetry = Bathymetry ...

– 226,000 km² # Bay of Biscay – 223,000 km² #

Aegean Sea The Aegean Sea ; tr, Ege Denizi (Greek: Αιγαίο Πέλαγος: "Egéo Pélagos", Turkish: "Ege Denizi" or "Adalar Denizi") is an elongated embayment of the Mediterranean Sea between Europe and Asia. It is located between the Balkans ...

– 214,000 km² #

Gulf of Anadyr The Gulf of Anadyr, or Anadyr Bay (russian: Анадырский залив), is a large bay on the Bering Sea in far northeast Siberia. It has a total surface area of Location The bay is roughly rectangular and opens to the southeast. The corn ...

– 200,000 km² #

Molucca Sea The Molucca Sea (Indonesian: ''Laut Maluku'') is located in the western Pacific Ocean, around the vicinity of Indonesia, specifically bordered by the Indonesian Islands of Celebes (Sulawesi) to the west, Halmahera to the east, and the Sula Islan ...

– 200,000 km² #

Oman Sea The Gulf of Oman or Sea of Oman ( ar, خليج عمان ''khalīj ʿumān''; fa, دریای عمان ''daryâ-ye omân''), also known as Gulf of Makran or Sea of Makran ( ar, خلیج مکران ''khalīj makrān''; fa, دریای مکرا� ...

– 181,000 km² # Ionian Sea – 169,000 km² #

Gulf of California The Gulf of California ( es, Golfo de California), also known as the Sea of Cortés (''Mar de Cortés'') or Sea of Cortez, or less commonly as the Vermilion Sea (''Mar Bermejo''), is a marginal sea of the Pacific Ocean that separates the Baja C ...

– 160,000 km² # Balearic Sea – 150,000 km² #

Adriatic Sea The Adriatic Sea () is a body of water separating the Italian Peninsula from the Balkan Peninsula. The Adriatic is the northernmost arm of the Mediterranean Sea, extending from the Strait of Otranto (where it connects to the Ionian Sea) to t ...

– 138,000 km²

Marginal seas by ocean

Seas may be considered marginal between ocean and land, or between oceans in which case they may be treated as marginal parts of either. There is no single ultimate authority on the matter.

Arctic Ocean

(clockwise from 180°) * Chukchi Sea * East Siberian Sea *

(connected to the

by the

Kara Strait The Kara Strait or Kara Gates (russian: Карские Ворота, translit=Karskiye Vorota) is a wide channel of water between the southern end of Novaya Zemlya and the northern tip of Vaygach Island. This strait connects the Kara Sea and ...

) **

Pechora Sea Pechora Sea (russian: link=no, Печо́рское мо́ре, or Pechorskoye More), is a sea at the northwest of Russia, the southeastern part of the Barents Sea. The western border of the sea is off Kolguyev Island, while the eastern border i ...

White Sea The White Sea (russian: Белое море, ''Béloye móre''; Karelian and fi, Vienanmeri, lit. Dvina Sea; yrk, Сэрако ямʼ, ''Serako yam'') is a southern inlet of the Barents Sea located on the northwest coast of Russia. It is s ...

Queen Victoria Sea The Queen Victoria Sea (russian: Море королевы Виктории, ''Morye Korolevy Viktorii'') is a body of water in the Arctic Ocean, stretching from northeast of Svalbard to northwest Franz Josef Land. It is obstructed by ice most of ...

Wandel Sea The Wandel Sea ( da, Wandelhavet; also known as McKinley Sea) is a body of water in the Arctic Ocean, stretching from northeast of Greenland to Svalbard. It is obstructed by ice most of the year. This sea is named after Danish polar explorer ...

* Greenland Sea *

Lincoln Sea Lincoln Sea (french: Mer de Lincoln; da, Lincolnhavet) is a body of water in the Arctic Ocean, stretching from Cape Columbia, Canada, in the west to Cape Morris Jesup, Greenland, in the east. The northern limit is defined as the great circle lin ...

(recognized by the IHO but not the IMO) * Baffin Bay * The Northwest Passages ** Prince Gustav Adolf Sea **

Amundsen Gulf Amundsen Gulf is a gulf located mainly in the Inuvik Region, Northwest Territories, Canada with a small section in the Kitikmeot Region of Nunavut. It lies between Banks Island and Victoria Island and the mainland. It is approximately in leng ...

** (more to be listed) * Hudson Bay **

Foxe Basin Foxe Basin is a shallow oceanic basin north of Hudson Bay, in Nunavut, Canada, located between Baffin Island and the Melville Peninsula. For most of the year, it is blocked by sea ice (fast ice) and drift ice made up of multiple ice floes. ...

*** Bowman Bay **

Wager Bay Wager Bay or Ukkusiksalik Bay is long narrow inlet in the Kivalliq Region of Nunavut, Canada, which opens east into Roes Welcome Sound at the northwest end of Hudson Bay. Ukkusiksalik National Park surrounds it. History Wager Bay was first c ...

Roes Welcome Sound Roes Welcome Sound is a long channel at the northwest end of Hudson Bay in Kivalliq Region, Nunavut, Canada between the mainland on the west and Southampton Island on the east. It opens south into Hudson Bay. Its north end joins Repulse Bay which ...

Foxe Channel The Foxe Channel () is an area of sea in Qikiqtaaluk Region, Nunavut, Canada. It separates the Foxe Basin (to the north) from Hudson Bay and the Hudson Strait (to the south). To the west and south-west is Southampton Island, to the east is Baf ...

** Bay of Gods Mercy **

Hudson Strait Hudson Strait (french: Détroit d'Hudson) links the Atlantic Ocean and Labrador Sea to Hudson Bay in Canada. This strait lies between Baffin Island and Nunavik, with its eastern entrance marked by Cape Chidley in Newfoundland and Labrador ...

***

Ungava Bay Ungava Bay (french: baie d'Ungava, ; iu, ᐅᖓᕙ ᑲᖏᖅᓗᒃ/) is a bay in northeastern Canada separating Nunavik (far northern Quebec) from Baffin Island. Although not geographically apparent, it is considered to be a marginal sea of the ...

Native Bay Native Bay is a waterway in Kivalliq Region, Nunavut, Canada. It is located in Hudson Bay off western Southampton Island. The Bell Peninsula lies to the southeast. Native Point is located at the bay's southern tip. East Bay is to the east. Geogra ...

** Evans Strait **

Fisher Strait Fisher Strait () is a natural waterway through the central Canadian Arctic Archipelago in the territory of Nunavut. It separates Southampton Island (to the north-west) from Coats Island Coats Island ( Inuktitut: ᐊᑉᐸᑑᕐᔪᐊᖅ, Appatu ...

James Bay James Bay (french: Baie James; cr, ᐐᓂᐯᒄ, Wînipekw, dirty water) is a large body of water located on the southern end of Hudson Bay in Canada. Both bodies of water extend from the Arctic Ocean, of which James Bay is the southernmost pa ...

* Beaufort Sea

Atlantic Ocean

In addition to the marginal seas listed in the three sub-sections below, the

Arctic Ocean The Arctic Ocean is the smallest and shallowest of the world's five major oceans. It spans an area of approximately and is known as the coldest of all the oceans. The International Hydrographic Organization (IHO) recognizes it as an ocean, a ...

itself is sometimes also considered a marginal sea of the Atlantic.

Africa and Eurasia

Kattegat The Kattegat (; sv, Kattegatt ) is a sea area bounded by the Jutlandic peninsula in the west, the Danish Straits islands of Denmark and the Baltic Sea to the south and the provinces of Bohuslän, Västergötland, Halland and Skåne in Sweden ...

Skagerrak The Skagerrak (, , ) is a strait running between the Jutland peninsula of Denmark, the southeast coast of Norway and the west coast of Sweden, connecting the North Sea and the Kattegat sea area through the Danish Straits to the Baltic Sea. T ...

** Wadden Sea **

Dogger Bank Dogger Bank (Dutch: ''Doggersbank'', German: ''Doggerbank'', Danish: ''Doggerbanke'') is a large sandbank in a shallow area of the North Sea about off the east coast of England. During the last ice age the bank was part of a large landmass ...

** Gulf of Bothnia **

Kvarken Kvarken ( sv, Kvarken, Norra Kvarken (as opposed to South Kvarken); ) is the narrow region of the Gulf of Bothnia separating the Bothnian Bay (the inner part of the gulf) from the Bothnian Sea. The distance from the Swedish mainland to the Finn ...

Bothnian Sea The Bothnian Sea ( sv, Bottenhavet; fi, Selkämeri) links the Bothnian Bay (also called the Bay of Bothnia) with the Baltic proper. Kvarken is situated between the two. Together, the Bothnian Sea and Bay make up a larger geographical entity, t ...

** South Kvarken **

Sea of Åland The Åland Sea (or the Sea of Åland; sv, Ålands hav, fi, Ahvenanmeri) is a waterway in the southern Gulf of Bothnia, between Åland and Sweden. It connects the Bothnian Sea with the Baltic Sea proper. The western part of the basin is in Swed ...

** Archipelago Sea ** Gulf of Finland ***

Vyborg Bay Vyborg Bay (, , ) is a deep inlet running northeastward near the eastern end of Gulf of Finland in the Baltic Sea. The city of Vyborg is located near the head of the gulf. The Monrepos Park is considered a jewel of the bay and a major draw f ...

***

Neva Bay The Neva Bay (Russian: Не́вская губа́, ''Névskaya Gubá''), also known as the Gulf of Kronstadt, is the easternmost part of the Gulf of Finland between Kotlin Island and the Neva River estuary where Saint Petersburg city centre is ...

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Koporye Bay The Koporye Bay ( Russian: Копорская губа, ''Koporskaya Guba'') is a 12 km-long bay on the southern coast of the Gulf of Finland. It is up to 26 km wide and 20 meters deep. The shore is low and rocky; the hinterland is w ...

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Luga Bay The Luga Bay (Russian: Лужская губа) is a shallow bay near the southern Russian coast of the Gulf of Finland. It is free of ice 326 days a year. Kurgalsky Peninsula separates the bay from the Bay of Narva The Narva Bay ( et, Narva l ...

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Narva Bay The Narva Bay ( et, Narva laht, russian: Нарвский залив) (also the ''Gulf of Narva'' and the ''Narva Estuary'') is a bay in the southern part of the Gulf of Finland divided between Estonia and Russia. Geography The Kurgalsky Pen ...

** Väinameri Sea **

Gulf of Riga The Gulf of Riga, Bay of Riga, or Gulf of Livonia ( lv, Rīgas līcis, et, Liivi laht) is a bay of the Baltic Sea between Latvia and Estonia. The island of Saaremaa (Estonia) partially separates it from the rest of the Baltic Sea. The main c ...

Curonian Lagoon The Curonian Lagoon (or Bay, Gulf; russian: Куршский залив, lt, Kuršių marios, pl, Zalew Kuroński, german: Kurisches Haff, lv, Kuršu joma) is a freshwater lagoon separated from the Baltic Sea by the Curonian Spit. Its surfac ...

Vistula Lagoon The Vistula Lagoon ( pl, Zalew Wiślany; russian: Калининградский залив, transliterated: ''Kaliningradskiy Zaliv''; german: Frisches Haff; lt, Aistmarės) is a brackish water lagoon on the Baltic Sea roughly 56 miles (90 ...

Gdańsk Bay Gdańsk Bay or the Gulf of Gdańsk ( pl, Zatoka Gdańska; csb, Gduńskô Hôwinga; russian: Гданьская бухта, Gdan'skaja bukhta, and german: Danziger Bucht) is a southeastern bay of the Baltic Sea. It is named after the adjacent por ...

Bay of Pomerania The Bay of Pomerania ( pl, Zatoka Pomorska; german: Pommersche Bucht; csb, Pòmòrskô Hôwinga) is a basin in the southwestern Baltic Sea, off the Pomeranian shores of Poland and Germany. It stretches between the northernmost tip of the island ...

Szczecin Lagoon Szczecin Lagoon ( pl, Zalew Szczeciński, german: Stettiner Haff, since 1945 sometimes also ''Oderhaff'' (Oder lagoon) or ''Pommersches Haff'' (Pomeranian lagoon)) is a lagoon in the Oder estuary, shared by Germany and Poland. It is separated f ...

** Bay of Greifswald ***

Rügischer Bodden The Rügische Bodden is a bay which is part of a larger stretch of water, the Greifswalder Bodden, bounded on two sides by the German mainland and on a third by the Baltic Sea island of Rügen. It is located southeast of Rügen island between Mö ...

Strelasund The Strelasund or Strela Sound is a sound or lagoon of the Baltic Sea which separates Rügen from the German mainland. It is crossed by a road and rail bridge called the Rügendamm in Stralsund. It runs northwest to southeast from a small shallow ...

Bay of Lübeck The Bay of Lübeck (, ) is a basin in the southwestern Baltic Sea, off the shores of German states of Mecklenburg-Vorpommern and Schleswig-Holstein. It forms the southwestern part of the Bay of Mecklenburg. The main port is Travemünde, a b ...

Bay of Kiel The Bay of Kiel or Kiel Bay (, ; ) is a bay in the southwestern Baltic Sea, off the shores of Schleswig-Holstein in Germany and the islands of Denmark. It is connected with the Bay of Mecklenburg in the east, the Little Belt in the northwest, ...

Kalmar Strait The Kalmar Strait ( sv, Kalmarsund) is a strait in the Baltic Sea, located between the Swedish island of Öland and the province of Småland of the Swedish mainland. The strait is about long and between and in width. There is a road bridge a ...

** Bight of Hanö **

Danish straits The Danish straits are the straits connecting the Baltic Sea to the North Sea through the Kattegat and Skagerrak. Historically, the Danish straits were internal waterways of Denmark; however, following territorial losses, Øresund and Fehmarn B ...

*** Oresund Strait ***

Fehmarn Belt Fehmarn Belt (), (, former spelling ''Femer Bælt''; ) is a strait connecting the Bay of Kiel and the Bay of Mecklenburg in the western part of the Baltic Sea between the German island of Fehmarn and the Danish island of Lolland. Ferries ...

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Great Belt The Great Belt ( da, Storebælt, ) is a strait between the major islands of Zealand (''Sjælland'') and Funen (''Fyn'') in Denmark. It is one of the three Danish Straits. Effectively dividing Denmark in two, the Belt was served by the Great B ...

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Little Belt The Little Belt (, ) is a strait between the island of Funen and the Jutland Peninsula in Denmark. It is one of the three Danish Straits that drain and connect the Baltic Sea to the Kattegat strait, which drains west to the North Sea and Atla ...

English Channel The English Channel, "The Sleeve"; nrf, la Maunche, "The Sleeve" (Cotentinais) or ( Jèrriais), (Guernésiais), "The Channel"; br, Mor Breizh, "Sea of Brittany"; cy, Môr Udd, "Lord's Sea"; kw, Mor Bretannek, "British Sea"; nl, Het Kana ...

** Strait of Dover *

Irish Sea The Irish Sea or , gv, Y Keayn Yernagh, sco, Erse Sie, gd, Muir Èireann , Ulster-Scots: ''Airish Sea'', cy, Môr Iwerddon . is an extensive body of water that separates the islands of Ireland and Great Britain. It is linked to the Ce ...

Iroise Sea Iroise () or the Iroise Sea (french: mer d'Iroise ; br, An Hirwazh) is the part of the Atlantic Ocean which stretches from the Ile de Sein to Ushant off the coast of Brittany in north-western France. It is contained within the Celtic Sea, borderin ...

* Bay of Biscay **

Cantabrian Sea The Cantabrian Sea; french: Mer Cantabrique, gl, Mar Cantábrico, ast, Mar Cantábricu, eu, Kantauri. is the term used mostly in Spain to describe the coastal sea of the Atlantic Ocean that borders the northern coast of Spain and the southwe ...

Gulf of Cádiz The Gulf of Cádiz ( es, Golfo de Cádiz, pt, Golfo de Cádis) is the arm of the Atlantic Ocean between Cabo de Santa Maria, the southernmost point of mainland Portugal and Cape Trafalgar at the western end of the Strait of Gibraltar. Two maj ...

** Alboran Sea ** Mar Menor ** Balearic (Catalan) Sea *** Gulf of Valencia **

Gulf of Lion The Gulf of Lion or Gulf of Lions (French: ''golfe du Lion'', Spanish: ''golfo de León'', Italian: ''Golfo del Leone'', Occitan: ''golf del/dau Leon'', Catalan: ''golf del Lleó'', Medieval Latin: ''sinus Leonis'', ''mare Leonis'', Classical L ...

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Étang de Thau The Étang de Thau (; oc, Estanh de Taur) or Bassin de Thau is the largest of a string of lagoons (''étangs'') that stretch along the French coast from the Rhône river to the foothills of the Pyrenees and the border to Spain in the Languedoc-R ...

Ligurian Sea The Ligurian Sea ( it, Mar Ligure; french: Mer Ligurienne; lij, Mâ Ligure) is an arm of the Mediterranean Sea. It lies between the Italian Riviera (Liguria) and the island of Corsica. The sea is thought to have been named after the ancient ...

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Gulf of Genoa The Gulf of Genoa (''Golfo di Genova'') is the northernmost part of the Ligurian Sea. This Italian gulf is about wide from the city of Imperia in the west to La Spezia in the east. The largest city on its coast is Genoa, which has an importan ...

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Gulf of Naples The Gulf of Naples (), also called the Bay of Naples, is a roughly 15-kilometer-wide (9.3 mi) gulf located along the south-western coast of Italy (province of Naples, Campania region). It opens to the west into the Mediterranean Sea. It i ...

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Gulf of Salerno The Gulf of Salerno (Italian: ''Golfo di Salerno'') is a gulf of the Tyrrhenian Sea in the coast of the province of Salerno in south-western Italy. The northern part of this coast is the Costiera Amalfitana, which ends at Punta di Campanella an ...

*** Gulf of Cagliari **

***

Bay of Kotor The Bay of Kotor ( Montenegrin and Serbian: , Italian: ), also known as the Boka, is a winding bay of the Adriatic Sea in southwestern Montenegro and the region of Montenegro concentrated around the bay. It is also the southernmost part of the hi ...

*** Gulf of Venice ****

Gulf of Trieste The Gulf of Trieste ( it, Golfo di Trieste, sl, Tržaški zaliv, hr, Tršćanski zaljev, german: Golf von Triest) is a very shallow bay of the Adriatic Sea, in the extreme northern part of the Adriatic Sea. It is part of the Gulf of Venice an ...

**** Venetian Lagoon ***

Kvarner Gulf The Kvarner Gulf (, or , la, Sinus Flanaticus or ), sometimes also Kvarner Bay, is a bay in the northern Adriatic Sea, located between the Istrian peninsula and the northern Croatian Littoral mainland. The bay is a part of Croatia's internal wa ...

** Ionian Sea *** Gulf of Taranto *** Gulf of Corinth ***

Messenian Gulf The Messenian Gulf (, ''Messiniakós Kólpos'') is a sea that is part of the Ionian Sea. The gulf is circumscribed by the southern coasts of Messenia and the southwestern coast of the Mani peninsula in Laconia. Its bounds are Venetiko Islan ...

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Laconian Gulf The Laconian Gulf ( el, Λακωνικός Κόλπος, translit=Lakonikos Kolpos), is a gulf in the south-eastern Peloponnese, in Greece. It is the southernmost gulf in Greece and the largest in the Peloponnese. In the shape of an inverted "U ...

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Myrtoan Sea The Myrtoan Sea (also Mirtoan Sea; el, Mυρτώο Πέλαγος, ''Myrtoo Pelagos'' ) is a subdivision of the Mediterranean Sea that lies between the Cyclades and Peloponnese. It is described as the part of the Aegean Sea south of Euboea, Att ...

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Argolic Gulf The Argolic Gulf (), also known as the Gulf of Argolis, is a gulf of the Aegean Sea off the east coast of the Peloponnese, Greece. It is about 50 km long and 30 km wide. Its main port is Nafplio, at its northwestern end. At the entrance to ...

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Saronic Gulf The Saronic Gulf (Greek: Σαρωνικός κόλπος, ''Saronikós kólpos'') or Gulf of Aegina in Greece is formed between the peninsulas of Attica and Argolis and forms part of the Aegean Sea. It defines the eastern side of the isthmus of Co ...

*** Petalioi Gulf ***

South Euboean Gulf The South Euboean Gulf ( el, Νότιος Ευβοϊκός Κόλπος, ''Notios Evvoïkos Kolpos'') is a gulf in Central Greece, between the island of Euboea and the Greek mainland (Boeotia and Attica). With a total length of approximately 50& ...

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North Euboean Gulf The North Euboean Gulf ( el, Βόρειος Ευβοϊκός Κόλπος, ''Voreios Evvoïkos Kolpos'') is a gulf of the Aegean Sea. It separates the northern part of the island Euboea from the mainland of Central Greece. The narrow Euripus Strai ...

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Malian Gulf The Malian or Maliac Gulf ( el, Μαλιακός Κόλπος, Maliakós Kólpos) is a gulf in the western Aegean Sea. It forms part of the coastline of Greece's region of Phthiotis. The gulf stretches east to west to a distance of , depending on ...

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Pagasetic Gulf The Pagasetic Gulf ( el, Παγασητικός κόλπος, Pagasitikós kólpos) is a rounded gulf (max. depth 102 metres) in the Magnesia regional unit (east central Greece) that is formed by the Mount Pelion peninsula. It is connected with ...

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Thermaic Gulf The Thermaic Gulf (), also called the Gulf of Salonika and the Macedonian Gulf, is a gulf constituting the northwest corner of the Aegean Sea. The city of Thessaloniki is at its northeastern tip, and it is bounded by Pieria Imathia and Laris ...

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Thracian Sea 250px, Thracian Sea satellite picture The Thracian Sea ( el, Θρακικό Πέλαγος, ''Thrakiko Pelagos''; tr, Trakya Denizi) is the northernmost part of the Aegean Sea. It is bounded by Macedonia and Thrace as well as northwestern Tur ...

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Strymonian Gulf The Strymonian or Strymonic Gulf (), also known as the Orfano Gulf (), is a branch of the Thracian Sea—itself part of the Aegean Sea—lying east of the Chalcidice peninsula and south of the Serres regional unit. It was formerly known as the Gul ...

**** Gulf of Saros *** Edremit Gulf ***

Gulf of İzmir The Gulf of İzmir ( tr, İzmir Körfezi), formerly known as the Gulf of Smyrna, is a gulf on the Aegean Sea, with its inlet between the Karaburun Peninsula and the mainland area of Foça. It is in length by in breadth, with an excellent ancho ...

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Icarian Sea 250px, Map of the Aegean Sea. Icarian Sea is shown at its right. The Icarian Sea ( el, Ικάριο Πέλαγος, ''Ikario Pelagos'') is a subdivision of the Mediterranean Sea that lies between the Cyclades and Asia Minor. It is described as ...

****

Gulf of Gökova Gulf of Gökova ( tr, Gökova Körfezi) or Gulf of Kerme ( Turkish: Kerme Körfezi, Greek: Κεραμεικός κόλπος, Latin: Ceramicus Sinus, English: Ceramic Gulf or Gulf of Cos), is a long (100 km), narrow gulf of the Aegean Sea b ...

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Sea of Crete 300px, Map of the Sea of Crete The Sea of Crete (, ''Kritiko Pelagos''), or Cretan Sea, is a sea, part of the Aegean Sea, located in its southern extremity, with a total surface area of . The sea stretches to the north of the island of Crete, eas ...

Sea of Marmara The Sea of Marmara,; grc, Προποντίς, Προποντίδα, Propontís, Propontída also known as the Marmara Sea, is an inland sea located entirely within the borders of Turkey. It connects the Black Sea to the Aegean Sea via t ...

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Gulf of İzmit Gulf of İzmit ( Turkish: ''İzmit Körfezi''), also referred to as Izmit Bay, is a bay at the easternmost edge of the Sea of Marmara, in Kocaeli Province, Turkey. The gulf takes its name from the city of İzmit. Other cities and towns around ...

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Gulf of Antalya The Gulf of Antalya ( tr, Antalya Körfezi) is a large bay of the northern Levantine Sea, in the eastern Mediterranean Sea south of Antalya Province, Turkey. It includes some of the main seaside resorts of Turkey, also known as the "Turkish Riviera" ...

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Gulf of Alexandretta The Gulf of Alexandretta or İskenderun ( tr, İskenderun Körfezi) is a gulf of the eastern Mediterranean or Levantine Sea. It lies beside the southern Turkish provinces of Adana and Hatay. Names The gulf is named for the nearby Turkish city ...

*** Gulf of Sidra **

Gulf of Gabès The Gulf of Gabes (or Cabès, Cabes, Gaps; ar, خليج قابس, ḫalīǧ Qābis), also known as Lesser Syrtis (from grc, Μικρά Σύρτις, Mikrá Sýrtis; la, Syrtis Minor), contrasting with the Greater Syrtis in Libya, is a gulf on ...

** Strait of Sicily ***

Gulf of Tunis The Gulf of Tunis () is a large Mediterranean bay in north-eastern Tunisia, extending for from Cape Farina in the west to Cape Bon in the east. Tunis, the capital city of Tunisia, lies at the south-western edge of the Gulf, as have a series of ...

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Inland Sea, Gozo The Inland Sea, sometimes called Qawra in Maltese and also known as Dwejra, is a lagoon of seawater on the island of Gozo linked to the Mediterranean Sea through an opening formed by a narrow natural arch. It was probably formed where a geologi ...

Sea of Sardinia The sea, connected as the world ocean or simply the ocean, is the body of salty water that covers approximately 71% of the Earth's surface. The word sea is also used to denote second-order sections of the sea, such as the Mediterranean Sea, ...

*** Gulf of Asinara *

Often treated as a part of the

. ** Gulf of Burgas ** Karkinit Bay **

Kalamita Bay __NOTOC__ The Kalamita Bay (russian: Каламитский залив, uk, Каламітська затока, crh, Kalamita körfezi, Каламита корьфези), also known as Gulf of Kalamita, is a bay and a gulf in the Black Sea so ...

** Sea of Azov ***

Syvash The Syvash or Sivash (Russian and Ukrainian: ; , Cyrillic: Сываш, "dirt"), also known as the or (, ''Gniloye More''; , ''Hnyle More''; , Cyrillic: Чюрюк Денъиз), is a large area of shallow lagoons on the west coast of the Sea ...

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Taganrog Bay Taganrog Bay (, uk, Таганрозька затока) is the northeastern arm of the Sea of Azov. It also may be perceived as a flooded estuary of the Don River. Geography The bay serves as a natural boundary between the Kuban coast line in ...

Bay of Arguin The Bay of Arguin (french: Baie d'Arguin; pt, Baía de Arguim) is a bay on the Atlantic shore of Mauritania and the former mouth of the Tamanrasset River, now a Paleo-river. Geography It is located south of Cap Blanc, north of Cap Timiris. Th ...

** Dakhlet Nouadhibou *

Yawri Bay Yawri Bay is a bay in the coast of Sierra Leone on the Atlantic Ocean. Geography Yawri Bay opens to the southwest and is located about 25 km to the south of Freetown. The Banana Islands The Banana Islands are a group of islands that lie of ...

** Bight of Benin **

Bight of Bonny The Bight of Biafra (known as the Bight of Bonny in Nigeria) is a bight off the West African coast, in the easternmost part of the Gulf of Guinea. Geography The Bight of Biafra, or Mafra (named after the town Mafra in southern Portugal), betwee ...

*** Corisco Bay * Luanda Bay *

Walvis Bay Walvis Bay ( en, lit. Whale Bay; af, Walvisbaai; ger, Walfischbucht or Walfischbai) is a city in Namibia and the name of the bay on which it lies. It is the second largest city in Namibia and the largest coastal city in the country. The ci ...

Saldanha Bay Saldanha Bay ( af, Saldanhabaai) is a natural harbour on the south-western coast of South Africa. The town that developed on the northern shore of the bay, also called Saldanha, was incorporated with five other towns into the Saldanha Bay Local ...

Table Bay Table Bay (Afrikaans: ''Tafelbaai'') is a natural bay on the Atlantic Ocean overlooked by Cape Town (founded 1652 by Van Riebeeck) and is at the northern end of the Cape Peninsula, which stretches south to the Cape of Good Hope. It was named b ...

False Bay False Bay (Afrikaans ''Valsbaai'') is a body of water in the Atlantic Ocean between the mountainous Cape Peninsula and the Hottentots Holland Mountains in the extreme south-west of South Africa. The mouth of the bay faces south and is demarcat ...

Americas

(coast-wise from north to south) *

North Water Polynya The North Water Polynya, or ''Pikialasorsuaq'' to Inuit in Greenland and ''Sarvarjuaq'' to Inuit in Canada (NOW), is a polynya (area of year-round open water surrounded by sea ice) that lies between Greenland and Canada in northern Baffin Bay. ...

* Baffin Bay *

Davis Strait Davis Strait is a northern arm of the Atlantic Ocean that lies north of the Labrador Sea. It lies between mid-western Greenland and Baffin Island in Nunavut, Canada. To the north is Baffin Bay. The strait was named for the English explorer John ...

** Home Bay *

Cumberland Sound Cumberland Sound (french: Baie Cumberland; Inuit: ''Kangiqtualuk'') is an Arctic waterway in Qikiqtaaluk Region, Nunavut, Canada. It is a western arm of the Labrador Sea located between Baffin Island's Hall Peninsula and the Cumberland Peninsula ...

Frobisher Bay Frobisher Bay is an inlet of the Davis Strait in the Qikiqtaaluk Region of Nunavut, Canada. It is located in the southeastern corner of Baffin Island. Its length is about and its width varies from about at its outlet into the Labrador Sea to ...

* Gulf of St. Lawrence *

Gulf of Maine , image = , alt = , caption = , image_bathymetry = GulfofMaine2.jpg , alt_bathymetry = , caption_bathymetry = Major features of the Gulf of Maine , location = Northeast coast of the ...

** Bay of Fundy **

Massachusetts Bay Massachusetts Bay is a bay on the Gulf of Maine that forms part of the central coastline of the Commonwealth of Massachusetts. Description The bay extends from Cape Ann on the north to Plymouth Harbor on the south, a distance of about . Its ...

Cape Cod Bay A cape is a clothing accessory or a sleeveless outer garment which drapes the wearer's back, arms, and chest, and connects at the neck. History Capes were common in medieval Europe, especially when combined with a hood in the chaperon. Th ...

Nantucket Sound Nantucket Sound_(geography), Sound is a roughly triangular area of the Atlantic Ocean offshore from the U.S. state of Massachusetts. It is long and wide, and is enclosed by Cape Cod on the north, Nantucket on the south, and Martha's Vineyard on ...

Vineyard Sound Vineyard Sound is the stretch of the Atlantic Ocean which separates the Elizabeth Islands and the southwestern part of Cape Cod from the island of Martha's Vineyard, located offshore from the state of Massachusetts in the United States. To the w ...

Buzzards Bay Buzzards Bay is a bay of the Atlantic Ocean adjacent to the U.S. state of Massachusetts. It is approximately 28 miles (45 kilometers) long by 8 miles (12 kilometers) wide. It is a popular destination for fishing, boating, and tourism. Since ...

Narragansett Bay Narragansett Bay is a bay and estuary on the north side of Rhode Island Sound covering , of which is in Rhode Island. The bay forms New England's largest estuary, which functions as an expansive natural harbor and includes a small archipelago. Sm ...

Rhode Island Sound Rhode Island Sound is a strait of water off the coast of the U.S. state of Rhode Island at the mouth of Narragansett Bay. It forms the eastern extension of Block Island Sound and opens out the Atlantic Ocean between Block Island and Martha's Vin ...

Block Island Sound Block Island Sound is a strait in the open Atlantic Ocean, approximately wide, separating Block Island from the coast of mainland Rhode Island. On the west, it extends to Montauk Point on the eastern tip of Long Island, as well as Plum Is ...

* Fishers Island Sound * Long Island Sound ** Shelter Island Sound ** Noyack Bay **

Peconic Bay The Peconic Bay is the parent name for two bays between the North Fork and South Fork of Long Island in the U.S. state of New York. It is separated from Gardiners Bay by Shelter Island. Peconic Bay is divided by Robins Island into the Gr ...

Gardiners Bay Gardiners Bay is a small arm of the Atlantic Ocean, approximately 10 mi (16 km) long and 8 mi (13 km) wide in the U.S. state of New York between the two flukelike peninsulas at the eastern end of Long Island. It is bounded o ...

** Tobaccolot Bay ** Sag Harbor Bay ** Three Mile Harbor ** Long Beach Bay ** Pipes Cove ** Southold Bay ** Flanders Bay ** Napeague Bay **

Fort Pond Bay Fort Pond Bay is a bay off Long Island Sound at Montauk, New York that was site of the first port on the end of Long Island. The bay has a long naval and civilian history. History New-York Province and the American Revolution Fort Pond Bay wa ...

** North Sea Harbor * New York Bay **

Upper New York Bay New York Harbor is at the mouth of the Hudson River where it empties into New York Bay near the East River tidal estuary, and then into the Atlantic Ocean on the east coast of the United States. It is one of the largest natural harbors in t ...

Lower New York Bay Lower New York Bay is a section of New York Bay south of the Narrows (the strait between Staten Island and Brooklyn). The eastern end of the Bay is marked by two spits of land, Sandy Hook, New Jersey, and Rockaway, Queens. The waterway b ...

* Jamaica Bay *

Raritan Bay Raritan Bay is a bay located at the southern portion of Lower New York Bay between the U.S. states of New York and New Jersey and is part of the New York Bight. The bay is bounded on the northwest by New York's Staten Island, on the west by Per ...

* Sandy Hook Bay *

Delaware Bay Delaware Bay is the estuary outlet of the Delaware River on the northeast seaboard of the United States. It is approximately in area, the bay's freshwater mixes for many miles with the saltwater of the Atlantic Ocean. The bay is bordered inland ...

Chesapeake Bay The Chesapeake Bay ( ) is the largest estuary in the United States. The Bay is located in the Mid-Atlantic region and is primarily separated from the Atlantic Ocean by the Delmarva Peninsula (including the parts: the Eastern Shore of Maryland / ...

Albemarle Sound Albemarle Sound () is a large estuary on the coast of North Carolina in the United States located at the confluence of a group of rivers, including the Chowan and Roanoke. It is separated from the Atlantic Ocean by the Currituck Banks, a bar ...

Pamlico Sound Pamlico Sound ( ) is a lagoon in North Carolina which is the largest lagoon along the North American East Coast, extending long and 15 to 20 miles (24 to 32 km) wide. It is part of a large, interconnected network of lagoon estuaries that i ...

Florida Bay Florida Bay is the bay located between the southern end of the Florida mainland (the Florida Everglades) and the Florida Keys in the United States. It is a large, shallow estuary that while connected to the Gulf of Mexico, has limited exchange o ...

Tampa Bay Tampa Bay is a large natural harbor and shallow estuary connected to the Gulf of Mexico on the west-central coast of Florida, comprising Hillsborough Bay, McKay Bay, Old Tampa Bay, Middle Tampa Bay, and Lower Tampa Bay. The largest freshwater ...

Charlotte Harbor Estuary Charlotte Harbor Estuary, the second largest bay in Florida, is located on the Gulf of Mexico coast of west Florida with two thirds lying in Charlotte County, Florida and one in Lee County. The harbor's mouth is located behind Gasparilla Island ...

Pensacola Bay Pensacola Bay is a bay located in the northwestern part of Florida, United States, known as the Florida Panhandle. The bay, an inlet of the Gulf of Mexico, is located in Escambia County and Santa Rosa County, adjacent to the city of Pensacola ...

Mobile Bay Mobile Bay ( ) is a shallow inlet of the Gulf of Mexico, lying within the state of Alabama in the United States. Its mouth is formed by the Fort Morgan Peninsula on the eastern side and Dauphin Island, a barrier island on the western side. The ...

** Vermilion Bay ** Galveston Bay ** Bay of Campeche *

Gulf of Gonâve The Gulf of Gonâve (french: Golfe de la Gonâve; ht, Gòf Lagonav) is a large gulf of the Caribbean Sea along the western coast of Haiti. Haiti's capital city, Port-au-Prince, is located on the coast of the gulf. Other cities on the gulf coast ...

( Haiti) **

Gulf of Honduras The Gulf or Bay of Honduras is a large inlet of the Caribbean Sea, indenting the coasts of Belize, Guatemala, and Honduras. From north to south, it runs for approximately 200 km (125 miles) from Dangriga, Belize, to La Ceiba, Honduras. ...

** Golfo de los Mosquitos **

Gulf of Venezuela The Gulf of Venezuela is a gulf of the Caribbean Sea bounded by the Venezuelan states of Zulia and Falcón and by La Guajira Department, Colombia. The western side is formed by the Guajira Peninsula. A strait connects it with Maracaibo Lake t ...

*** Lake Maracaibo **

Gulf of Paria The Gulf of Paria ( ; es, Golfo de Paria) is a shallow (180 m at its deepest) semi-enclosed inland sea located between the island of Trinidad (Republic of Trinidad and Tobago) and the east coast of Venezuela. It separates the two countries ...

** Gulf of Darién *

Bay of All Saints The Bay of All Saints ( pt, Baía de Todos os Santos), also known as All Saints' Bay and Todos os Santos Bay, is the principal bay of the Brazilian state of Bahia, to which it gave its name. It sits on the eastern coast of Brazil, surrounding p ...

Guanabara Bay Guanabara Bay ( pt, Baía de Guanabara, ) is an oceanic bay located in Southeast Brazil in the state of Rio de Janeiro. On its western shore lie the cities of Rio de Janeiro and Duque de Caxias, and on its eastern shore the cities of Niterói a ...

Lagoa dos Patos Lagoa dos Patos (, , ; English: ''Ducks' Lagoon'') is the largest lagoon in Brazil and the largest coastal lagoon in South America. It is located in the state of Rio Grande do Sul, southern Brazil. It covers an area of , is long and has a maximu ...

Samborombón Bay Samborombón Bay () is a bay on the coast of Buenos Aires Province, Argentina. Located at the Río de la Plata's mouth on the Argentine Sea, it begins about southeast of Buenos Aires and is about wide. Toponymy The bay is thought to have been ...

San Matías Gulf The San Matias Gulf is an inlet of the Atlantic Ocean off the coast of Patagonia, Argentina. It is bordered by the Río Negro Province to the north and west, and the Valdes Peninsula of the Chubut Province to the south. It is "one of the largest ...

Golfo Nuevo Golfo Nuevo (Spanish for "New Gulf") is a body of water formed by the Península Valdés and Punta Ninfas in the province of Chubut in the Argentine Patagonia. It is located southwest of Buenos Aires, Argentina. Puerto Madryn is its major seap ...

San Jorge Gulf The San Jorge Gulf (Golfo San Jorge; Spanish for ''Gulf of St. George'') is a bay in southern Patagonia, Argentina. It is an ocean basin opening to the Atlantic. Its shoreline spans Chubut and Santa Cruz province. The gulf measures approximatel ...

Northern islands

(from east to west) *

(between

Great Britain Great Britain is an island in the North Atlantic Ocean off the northwest coast of continental Europe. With an area of , it is the largest of the British Isles, the largest European island and the ninth-largest island in the world. It i ...

and

Ireland Ireland ( ; ga, Éire ; Ulster Scots dialect, Ulster-Scots: ) is an island in the Atlantic Ocean, North Atlantic Ocean, in Northwestern Europe, north-western Europe. It is separated from Great Britain to its east by the North Channel (Grea ...

) *

Inner Seas off the West Coast of Scotland The Inner Seas off the West Coast of Scotland is a marine area designated by the International Hydrographic Organization (IHO). It consists of a number of waterbodies between the Scottish mainland, the Outer Hebrides islands, and the coast of I ...

Sea of the Hebrides The Sea of the Hebrides ( gd, An Cuan Barrach, ) is a small, partly sheltered section of the North Atlantic Ocean, indirectly off the southern part of the north-west coast of Scotland. To the east are the mainland of Scotland and the northern ...

(Great Britain) *

Denmark Strait The Denmark Strait () or Greenland Strait ( , 'Greenland Sound') is an oceanic strait between Greenland to its northwest and Iceland to its southeast. The Norwegian island of Jan Mayen lies northeast of the strait. Geography The strait connect ...

(between

Greenland Greenland ( kl, Kalaallit Nunaat, ; da, Grønland, ) is an island country in North America that is part of the Kingdom of Denmark. It is located between the Arctic and Atlantic oceans, east of the Canadian Arctic Archipelago. Greenland i ...

and

Iceland Iceland ( is, Ísland; ) is a Nordic island country in the North Atlantic Ocean and in the Arctic Ocean. Iceland is the most sparsely populated country in Europe. Iceland's capital and largest city is Reykjavík, which (along with its s ...

) *

Indian Ocean

* Andaman Sea **

Gulf of Martaban A gulf is a large inlet from the ocean into the landmass, typically with a narrower opening than a bay, but that is not observable in all geographic areas so named. The term gulf was traditionally used for large highly-indented navigable bodies ...

– an arm of the Andaman Sea in the southern part of

Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John Wells explai ...

Gulf of Kutch The Gulf of Kutch is located between the peninsula regions of Kutch and Saurashtra, bounded in the state of Gujarat that borders Pakistan. It opens towards the Arabian Sea facing the Osman Gulf. It is about 50 km wide at the entrance bef ...

Gulf of Khambhat The Gulf of Khambhat, historically known as the Gulf of Cambay, is a bay on the Arabian Sea coast of India, bordering the state of Gujarat just north of Mumbai and Diu Island. The Gulf of Khambhat is about long, about wide in the north and u ...

* Gulf of Aden * Gulf of Oman *

Sea of Zanj The Sea of Zanj ( ar, بحر زنج) is a former name for that portion of the western Indian Ocean adjacent to the region in the African Great Lakes referred to by medieval Arab geographers as Zanj.

Palk Strait The Palk Strait ( ta, பாக்கு நீரிணை ''Pākku Nīriṇai'', si, පෝක් සමුද්‍ර සන්ධිය ''Pok Samudra Sandhiya'') is a strait between the Tamil Nadu state of India and the Jaffna Distri ...

Palk Bay Palk Bay is a semi-enclosed shallow water body between the southeast coast of India and Sri Lanka, with a water depth maximum of 13 m. Palk Bay is located between 8° 50′ and 10° North latitudes and 78° 50′ and 80° 30′ East longitud ...

Gulf of Mannar The Gulf of Mannar ( ) is a large shallow bay forming part of the Laccadive Sea in the Indian Ocean with an average depth of .

Pacific Ocean

Americas

* Bering Sea ** Bristol Bay **

Norton Sound Norton Sound (russian: Нортон-Саунд) is an inlet of the Bering Sea on the western coast of the U.S. state of Alaska, south of the Seward Peninsula. It is about 240 km (150 mi) long and 200 km (125 mi) wide. The Yukon ...

Chilean Sea The Chilean Sea is the portion of the Pacific Ocean lying west of the Chilean mainland. The official Chilean usage for Chilean Sea was defined on 30 May 1974 when the ''Diario oficial de la Republica de Chile'' published Supreme Decree #346, ...

Gulf of Corcovado Gulf of Corcovado () is a large body of water separating the Chiloé Island from the mainland of Chile. Geologically, it is a forearc basin that has been carved out by Quaternary glaciers. Most of the islands of Chiloé Archipelago are located ...

Gulf of Penas The Gulf of Penas (''Golfo de Penas'' in Spanish, meaning "gulf of distress") is a body of water located south of the Taitao Peninsula, Chile. Geography It is open to the westerly storms of the Pacific Ocean, but it affords entrance to several nat ...

Moraleda Channel Moraleda Channel () is a body of water separating the Chonos Archipelago from the mainland of Chile. It is located at , leading to Gulf of Corcovado. Southward from the mouth of the Aisén Fjord, Moraleda Channel divides into two arms. The east a ...

Reloncaví Sound Reloncaví Sound or ''Seno de Reloncaví'' is a body of water immediately south of Puerto Montt, a port city in the Los Lagos Region of Chile. It is the place where the Chilean Central Valley meets the Pacific Ocean. The Calbuco Archipelago comp ...

Sea of Chiloé 250px, Map of the Sea of Chiloé, located between Continental Chiloé ">Palena_Province.html" ;"title="Chiloé Island and Palena Province">Continental Chiloé The sea of Chiloé (Spanish: ''Mar de Chiloé'' or ''Mar Chilote'') is a marginal sea ...

Cook Inlet Cook Inlet ( tfn, Tikahtnu; Sugpiaq: ''Cungaaciq'') stretches from the Gulf of Alaska to Anchorage in south-central Alaska. Cook Inlet branches into the Knik Arm and Turnagain Arm at its northern end, almost surrounding Anchorage. On its so ...

Glacier Bay Glacier Bay Basin in southeastern Alaska, in the United States, encompasses the Glacier Bay and surrounding mountains and glaciers, which was first proclaimed a U.S. National Monument on February 25, 1925, and which was later, on December 2, 1980 ...

Prince William Sound Prince William Sound ( Sugpiaq: ''Suungaaciq'') is a sound of the Gulf of Alaska on the south coast of the U.S. state of Alaska. It is located on the east side of the Kenai Peninsula. Its largest port is Valdez, at the southern terminus of the T ...

Salish Sea , image = PNW-straits.jpg , alt = , caption = The Salish Sea, showing the open Pacific Ocean at lower left, and from there, heading inland: the Strait of Juan de Fuca, the narrow Puget Sound at lower ri ...

(also known as the Sea of Cortés) * Gulf of the Farallones *

Gulf of Fonseca The Gulf of Fonseca ( es, Golfo de Fonseca; ), a part of the Pacific Ocean, is a gulf in Central America, bordering El Salvador, Honduras, and Nicaragua. History Fonseca Bay was discovered for Europeans in 1522 by Gil González de Ávil ...

Gulf of Guayaquil The Gulf of Guayaquil is a large body of water of the Pacific Ocean in western South America. Its northern limit is the city of Santa Elena, in Ecuador, and its southern limit is Cabo Blanco, in Peru. The gulf takes its name from the city of Gua ...

Gulf of Nicoya The Gulf of Nicoya ( es, Golfo de Nicoya) is an inlet of the Pacific Ocean. It separates the Nicoya Peninsula from the mainland of Costa Rica, and encompasses a marine and coastal landscape of wetlands, rocky islands and cliffs. The first Spanish ...

Gulf of Panama The Gulf of Panama ( es, Golfo de Panamá) is a gulf of the Pacific Ocean off the southern coast of Panama, where most of eastern Panama's southern shores adjoin it. The Gulf has a maximum width of , a maximum depth of and the size of . The Pana ...

Bay of San Miguel The Bay of San Miguel () is a bay of the Gulf of Panama, located on the Pacific coast of Darién Province in eastern Panama. The bay is located at . It is fed by the Tuira River. At its southern end is Cape Garachiné A cape is a clothing ...

Gulf of Parita Gulf of Parita or Parita Bay (, ''Bahía Parita'') is a large gulf off the coast of Herrera Province, in Panama. It forms the western section of the Gulf of Panama, and is located between Puerto Obaldia, Coclé and the mouth of the Rio Grande. ...

Panama Bay The Panama Bay ( es, Bahia de Panamá) is a large body of water off the coast of southern Panama, at . It is a part of the greater Gulf of Panama. Pollution Problems The Panama Bay is considered to be in an eutrophic state by the World Resources ...

* Grau Sea *

* San Francisco Bay **

San Pablo Bay San Pablo Bay is a tidal estuary that forms the northern extension of San Francisco Bay in the East Bay and North Bay regions of the San Francisco Bay Area in northern California. Most of the Bay is shallow; however, there is a deep water c ...

Australia and Eurasia

Bali Sea The Bali Sea ( id, Laut Bali) is the body of water north of the island of Bali and south of Kangean Island in Indonesia. The sea forms the south-west part of the Flores Sea, and the Madura Strait opens into it from the west. Geography The Bali Se ...

* Bay of Kampong Som *

Bay of Plenty The Bay of Plenty ( mi, Te Moana-a-Toi) is a region of New Zealand, situated around a bight of the same name in the northern coast of the North Island. The bight stretches 260 km from the Coromandel Peninsula in the west to Cape Runaw ...

Bismarck Sea The Bismarck Sea (, ) lies in the southwestern Pacific Ocean within the nation of Papua New Guinea. It is located northeast of the island of New Guinea and south of the Bismarck Archipelago. It has coastlines in districts of the Islands Regi ...

Bohai Sea The Bohai Sea () is a marginal sea approximately in area on the east coast of Mainland China. It is the northwestern and innermost extension of the Yellow Sea, to which it connects to the east via the Bohai Strait. It has a mean depth of ...

Bohol Sea The Bohol Sea, also called the Mindanao Sea, is a sea located between the Visayas and Mindanao islands in the Philippines. It lies south of Bohol and Leyte and north of Mindanao. Siquijor and Camiguin are its two major islands. The major citi ...

(also known as the Mindanao Sea) *

Camotes Sea The Camotes Sea is a small sea within the Philippine archipelago, situated between the Central Visayan and the Eastern Visayan regions. It separates Cebu from Leyte hence is bordered by Cebu to the west, Leyte to the east and north, and Bohol ...

Ceram Sea The Seram Sea or Ceram Sea ( id, Laut Seram) is one of several small seas between the scattered islands of Indonesia. It is a section of the Pacific Ocean with an area of approximately located between Buru and Seram, which are two of the isla ...

* Coral Sea * Devil's/Dragon's Sea * East China Sea **

Ariake Sea The is a body of salt water surrounded by Fukuoka, Saga, Nagasaki, and Kumamoto Prefectures, all of which lie on the island of Kyūshū in Japan. It is the largest bay in Kyūshū. Its deepest point is only about 50 meters (165 ft) deep, and ext ...

Hangzhou Bay Hangzhou Bay, or the Bay of Hangzhou (), is a funnel-shaped inlet of the East China Sea, bordered by the province of Zhejiang and the municipality of Shanghai, which lies north of the Bay. The Bay extends from the East China Sea to its head ...

Kagoshima Bay also known as Kinkō Bay, is a deep inlet of the East China Sea on the coast of Japan.''Merriam Webster's Geographical Dictionary, Third Edition'', p. 562. Kagoshima Bay is on the south coast of the island of Kyūshū. The port city of Kag ...

* Gulf of Carpentaria * Gulf of Thailand **

Bandon Bay Bandon Bay ( th, อ่าวบ้านดอน, , ) is a bay in the Gulf of Thailand in Surat Thani Province, extending from the Sui cape in Chaiya District in the northwest to Kanchanadit District to the east. The total coastline is about ...

** Bay of Bangkok *

Halmahera Sea The Halmahera Sea is a regional sea located in the central eastern part of the Australasian Mediterranean Sea. It is centered at about 1°S and 129°E and is bordered by the Pacific Ocean to the north, Halmahera to the west, Waigeo and West ...

Hauraki Gulf The Hauraki Gulf / Tīkapa Moana is a coastal feature of the North Island of New Zealand. It has an area of 4000 km2,Hawke's Bay Hawke's Bay ( mi, Te Matau-a-Māui) is a local government region on the east coast of New Zealand's North Island. The region's name derives from Hawke Bay, which was named by Captain James Cook in honour of Admiral Edward Hawke. The region i ...

* Java Sea *

Koro Sea The Koro Sea or Sea of Koro is a sea in the Pacific Ocean between Viti Levu island, Fiji to the west and the Lau Islands to the east, surrounded by the islands of the Fijian archipelago. It is named after Koro Island Koro (village in Fijian) ...

* Philippine Sea **

Ise Bay is a bay located at the mouth of the Kiso Three Rivers between Mie and Aichi Prefectures in Japan. Ise Bay has an average depth of and a maximum depth of . The mouth of the bay is and is connected to the smaller Mikawa Bay by two channels: ...

*** Mikawa Bay ** Suruga Bay *

Poverty Bay Poverty Bay ( Māori: ''Tūranganui-a-Kiwa'') is the largest of several small bays on the east coast of New Zealand's North Island to the north of Hawke Bay. It stretches for from Young Nick's Head in the southwest to Tuaheni Point in the no ...

Sagami Bay lies south of Kanagawa Prefecture in Honshu, central Japan, contained within the scope of the Miura Peninsula, in Kanagawa, to the east, the Izu Peninsula, in Shizuoka Prefecture, to the west, and the Shōnan coastline to the north, while th ...

Savu Sea The Savu Sea (or the Sawu Sea) ( id, Laut Sawu, pt, Mar de Savu, tet, Tasi Savu) is a small sea within Indonesia named for the island of Savu (Sawu) on its southern boundary. It is bounded by Savu and Rai Jua to the south, the islands of ...

Peter the Great Gulf The Peter the Great Gulf (Russian: Залив Петра Великого) is a gulf on the southern coast of Primorsky Krai, Russia, and the largest gulf of the Sea of Japan. The gulf extends for from the Russian-North Korean border at the mout ...

** Toyama Bay **

Wakasa Bay is a bay located in the Chūbu region of Japan, and spans the coasts of Kyoto Prefecture, and Fukui Prefecture. Geography Wakasa Bay is the area south of the straight line from Cape Kyoga on the west of Tango Peninsula to Cape Echizen on the ...

* Sea of Okhotsk **

Shelikhov Gulf Shelikhov Gulf (russian: залив Шелихова) is a large gulf off the northwestern coast of Kamchatka, Russia. The gulf is named after Russian explorer Grigory Shelikhov. It is located in the northeastern corner of the Sea of Okhotsk and ...

* Seto Inland Sea **

Osaka Bay Osaka Bay (大阪湾 ''Ōsaka-wan'' ) is a bay in western Japan. As an eastern part of the Seto Inland Sea, it is separated from the Pacific Ocean by the Kii Channel and from the neighbor western part of the Inland Sea by the Akashi Strait. ...

Sibuyan Sea The Sibuyan Sea is a small sea in the Philippines that separates the Visayas from the northern Philippine island of Luzon. It is bounded by the island of Panay to the south, Mindoro to the west, Masbate to the east, and to the north Marinduque ...

** Gulf of Tonkin **

Qiongzhou Strait The Qiongzhou Strait, also called the is the Chinese strait that separates Guangdong's Leizhou Peninsula from the island province of Hainan. It connects the Gulf of Tonkin on its west to the South China Sea on its east. The strait is on averag ...

Natuna Sea ''(Sacred Ocean, Fortune Land) , image_map = , pushpin_map = Indonesia Riau Islands#Indonesia Sumatra#Indonesia#South China Sea , pushpin_map_caption = Location in Riau Islands##Location in Sumatra##Location in I ...

*** North Natuna Sea **

West Philippine Sea West Philippine Sea ( fil, Karagatang Kanlurang Pilipinas; abbreviated as WPS) is the official designation by the government of the Philippines to the parts of the South China Sea that are included in the country's exclusive economic zone. The ...

South Seas Today the term South Seas, or South Sea, is used in several contexts. Most commonly it refers to the portion of the Pacific Ocean south of the equator. In 1513, when Spanish conquistador Vasco Núñez de Balboa coined the term ''Mar del Sur'', ...

** Gulf of Tonkin * Sulu Sea *

Tokyo Bay is a bay located in the southern Kantō region of Japan, and spans the coasts of Tokyo, Kanagawa Prefecture, and Chiba Prefecture. Tokyo Bay is connected to the Pacific Ocean by the Uraga Channel. The Tokyo Bay region is both the most populous ...

Visayan Sea The Visayan Sea is a sea in the Philippines surrounded by the islands of the Visayas. It is bounded by the islands Masbate to the north, Panay to the west, Leyte to the east, and Cebu and Negros to the south. The sea is connected to several b ...

* Waihau Bay *

***

Bohai Bay Bohai Bay () is one of the three major bays of the Bohai Sea, the northwestern and innermost gulf of the Yellow Sea. It is bounded by the coastlines of eastern Hebei province (Tangshan and Cangzhou), Tianjin municipality and northern Shand ...

***

Laizhou Bay Laizhou Bay () is a bay on the southern shore of the Bohai Sea (also known as the ''Bohai Gulf'', or just ''Bo Hai'', which is a large and relatively shallow westward extension of the northern Yellow Sea), bounded by the northwestern coastline of ...

***

Liaodong Bay Liaodong Bay () is largest and longest of the three main bays (along with Laizhou Bay to the south and the Bohai Bay to the southwest) of the Bohai Sea, the innermost gulf of the Yellow Sea. Although named after the Liaodong Peninsula (which ...

Jiaozhou Bay The Jiaozhou Bay (; german: Kiautschou Bucht, ) is a bay located in the prefecture-level city of Qingdao (Tsingtau), China. The bay has historically been romanized as Kiaochow, Kiauchau or Kiao-Chau in English and Kiautschou in German. Geogra ...

Korea Sea The Sea of Japan is the marginal sea between the Japanese archipelago, Sakhalin, the Korean Peninsula, and the mainland of the Russian Far East. The Japanese archipelago separates the sea from the Pacific Ocean. Like the Mediterranean Sea, it h ...

Southern Ocean

* Amundsen Sea *

* Cosmonauts Sea * Davis Sea * D'Urville Sea *

Drake Passage The Drake Passage (referred to as Mar de Hoces Hoces Sea"in Spanish-speaking countries) is the body of water between South America's Cape Horn, Chile and the South Shetland Islands of Antarctica. It connects the southwestern part of the Atla ...

* King Haakon VII Sea *

* Mawson Sea *

McMurdo Sound McMurdo Sound is a sound in Antarctica. It is the southernmost navigable body of water in the world, and is about from the South Pole. Captain James Clark Ross discovered the sound in February 1841, and named it after Lt. Archibald McMurdo ...

** Polynyas in McMurdo Sound *

* Spencer Gulf *

Weddell Polynya The Weddell Polynya, or Weddell Sea Polynya, is a polynya or irregular area of open water surrounded by sea ice in the Weddell Sea of the Southern Ocean off Antarctica and near the Maud Rise. The formation of the polynya exposes relatively warmer o ...

/Maud Rise Polynya

Defined by currents

* (Wide) Sargasso Sea –

North Atlantic Gyre The North Atlantic Gyre of the Atlantic Ocean is one of five great oceanic gyres. It is a circular ocean current, with offshoot eddies and sub-gyres, across the North Atlantic from the Intertropical Convergence Zone (calms or doldrums) to the part ...

Not included

Entities called "seas" which are not divisions of the World Ocean are not included in this list. Excluded are: * Salt lakes with "Sea" in the name: Aral Sea, Dead Sea,

Salton Sea The Salton Sea is a shallow, landlocked, highly saline body of water in Riverside and Imperial counties at the southern end of the U.S. state of California. It lies on the San Andreas Fault within the Salton Trough that stretches to the Gulf ...

* Freshwater lakes with "Sea" in the name: Sea of Galilee * Extraterrestrial oceans: list of largest lakes and seas in the Solar System * Gulfs, bays, straits, and other bodies of water in lakes Other items not included: *

Coral reef A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups. C ...

s *

Glacier A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires distinguishing features, such as ...

s *

Ice shelves An ice shelf is a large floating platform of ice that forms where a glacier or ice sheet flows down to a coastline and onto the ocean surface. Ice shelves are only found in Antarctica, Greenland, Northern Canada, and the Russian Arctic. The b ...

Marsh A marsh is a wetland that is dominated by herbaceous rather than woody plant species.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p Marshes can often be found a ...

es * Ocean banks * Ocean gyres *

s *

Reef A reef is a ridge or shoal of rock, coral or similar relatively stable material, lying beneath the surface of a natural body of water. Many reefs result from natural, abiotic processes— deposition of sand, wave erosion planing down rock o ...

s *

River delta A river delta is a landform shaped like a triangle, created by deposition of sediment that is carried by a river and enters slower-moving or stagnant water. This occurs where a river enters an ocean, sea, estuary, lake, reservoir, or (more ra ...

s *

s * Swamps * Swimming pools /

water park A water park (or waterpark, water world) is an amusement park that features water play areas such as swimming pools, water slides, splash pads, water playgrounds, and lazy rivers, as well as areas for floating, bathing, swimming, and other baref ...

s *

Wetland A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The p ...

Notes

References

External links

* {{physical oceanography, expanded=other *

Seas This is a list of seas of the World Ocean, including marginal seas, areas of water, various gulfs, bights, bays, and straits. Terminology * Ocean – the four to seven largest named bodies of water in the World Ocean, all of which have "Ocean ...

Geographic taxonomies Oceanography

Terminology

Largest seas by area

Marginal seas by ocean

Arctic Ocean

Atlantic Ocean

Africa and Eurasia

Americas

Northern islands

Indian Ocean

Pacific Ocean

Americas

Australia and Eurasia

Southern Ocean

Defined by currents

Not included

See also

Notes

References

External links