Jack may refer to:

Places

* Jack, Alabama, US, an unincorporated community * Jack, Missouri, US, an unincorporated community *

Jack County, Texas Jack County is a county located in the north central part of the U.S. state of Texas. As of the 2020 census, its population was 8,472. Its county seat is Jacksboro. The county was created in 1856 and organized the next year. It is named for ...

, a county in Texas, USA

People and fictional characters

Jack (given name) Jack is a given name, a diminutive of John; alternatively, it may be derived from Jacques, the French form of James or Jacob. Since the late 20th century, Jack has become one of the most common names for boys in many English-speaking countries. ...

, a male given name, including a list of people and fictional characters with the name * Jack (surname), including a list of people with the surname *

Jack (Tekken) refers to multiple fictional characters in the ''Tekken'' series of 3D fighting games. The character is an android, first introduced under the name "Jack", in the original video game ''Tekken''. Subsequent ''Tekken'' games feature an upgraded m ...

, multiple fictional characters in the fighting game series ''Tekken'' *

Jack the Ripper Jack the Ripper was an unidentified serial killer active in and around the impoverished Whitechapel district of London, England, in the autumn of 1888. In both criminal case files and the contemporaneous journalistic accounts, the killer w ...

, an unidentified British serial killer active in 1888 *

Wolfman Jack Robert Weston Smith (January 21, 1938July 1, 1995), known as Wolfman Jack, was an American disc jockey active from 1960 till his death in 1995. Famous for his gravelly voice, he credited it for his success, saying, "It's kept meat and potatoes ...

(1938–1995), a stage name of American disk jockey Robert Weston Smith *

New Jack Jerome Young (January 3, 1963 – May 14, 2021) was an American professional wrestler better known by his ring name New Jack. He was best known for his time with Extreme Championship Wrestling (ECW), where he became notorious for his willingnes ...

, a stage name of Jerome Young (1963-2021), an American professional wrestler *

Spring-heeled Jack Spring-heeled Jack is an entity in English folklore of the Victorian era. The first claimed sighting of Spring-heeled Jack was in 1837. Later sightings were reported all over the United Kingdom and were especially prevalent in suburban Lo ...

, a creature in Victorian-era English folklore

Animals and plants

Fish

Carangidae The Carangidae are a family of ray-finned fish which includes the jacks, pompanos, jack mackerels, runners, and scads. It is the largest of the six families included within the order Carangiformes. Some authorities classify it as the only family ...

generally, including: **

Almaco jack The longfin yellowtail (''Seriola rivoliana''), also known as the almaco or silvercoat jack, deep-water, falcate, European or highfin amberjack, rock salmon, longfin or yellow kingfish, is a game fish of the family Carangidae; they are in the sam ...

Amberjack Amberjacks are Atlantic and Pacific fish in the genus '' Seriola'' of the family Carangidae. They are widely consumed across the world in various cultures, most notably for Pacific amberjacks in Japanese cuisine; they are most often found in th ...

Bar jack The bar jack (''Caranx ruber''), also known as the carbonero, red jack, blue-striped cavalla or passing jack, is a common species of inshore marine fish classified in the jack family, Carangidae. The bar jack is distributed through the western ...

** Black jack (fish) **

Crevalle jack The crevalle jack (''Caranx hippos''), also known as the common jack, black-tailed trevally, couvalli jack, black cavalli, jack crevale, or yellow cavalli is a common species of large marine fish classified within the jack family, Carangidae. The ...

** Giant trevally or ronin jack ** Jack mackerel ** Leather jack **

Yellow jack The yellow jack (''Carangoides bartholomaei''), also known as coolihoo, is a species of marine fish in the jack family, Carangidae. It is one of only two representatives of its genus present in the Atlantic Ocean, inhabiting waters off the east ...

Coho salmon The coho salmon (''Oncorhynchus kisutch;'' Karuk: achvuun) is a species of anadromous fish in the salmon family (biology), family and one of the five Pacific salmon species. Coho salmon are also known as silver salmon or "silvers". The scientif ...

, males called "jacks" *'' Esox'' (northern pike), young called "jacks" *"Jackfish" or "jack", a western Canadian name for

northern pike The northern pike (''Esox lucius'') is a species of carnivorous fish of the genus ''Esox'' (the pikes). They are typical of brackish and fresh waters of the Northern Hemisphere (''i.e.'' holarctic in distribution). They are known simply as a p ...

Mammals

* Jack (baboon), a baboon who was the assistant to a disabled railway signalman in South Africa * Jack (cat), a Norwegian forest cat who was lost by American Airlines baggage handlers * Jack or jackass, a male donkey (''Equus africanus'')

Plants

* Jack (tree) (''Mangifera caesia''), a relative of the mango *

Jack pine Jack pine (''Pinus banksiana'') is an eastern North American pine. Its native range in Canada is east of the Rocky Mountains from the Mackenzie River in the Northwest Territories to Cape Breton Island in Nova Scotia, and the north-central and ...

(''Pinus banksiana''), a North American conifer

Arts, entertainment, and media

Films

* ''Jack'' (1996 film), a film starring Robin Williams * ''Jack'' (2004 film), a film starring Anton Yelchin and Stockard Channing * ''Jack'' (2013 film), a television film starring Rick Roberts and Sook-Yin Lee * ''Jack'' (2014 film), a German film * ''Jack'' (2015 film), an Austrian film

Games

Jack (playing card) A Jack or Knave, in some games referred to as a bower, is a playing card which, in traditional French and English decks, pictures a man in the traditional or historic aristocratic or courtier dress, generally associated with Europe of the 16th or ...

, the lowest-ranking face card in some types of deck * Jack, a target ball used in games such as bowls * Jack, a playing piece used in the children's game called jacks

Literature

* ''Jack'' (Homes novel), a 1990 novel by A. M. Homes * ''Jack'' (Lundell novel), a 1976 novel by Ulf Lundell * ''Jack'' (Robinson novel), a 2020 novel by Marilynne Robinson

Periodicals

* ''Jack'' (Italian magazine), an Italian-language technology magazine * ''Jack'' (magazine), an English-language British lad mag

Music

Artists and groups

* Jack (band), a British independent pop group signed to the Too Pure label *

Jack & Jack Jack & Jack are an American pop-rap duo from Omaha, Nebraska, consisting of Jack Johnson and Jack Gilinsky, based in Los Angeles, California. After success via the social media app Vine, the duo turned to careers as musicians. Their 2014 single " ...

, an American an American pop-rap duo * Jack (Vietnamese singer) (born 1997), a Vietnamese pop star

Albums

* ''Jack'' (album), a 2010 studio album by John Farnham * ''Jack'' (EP), a 1991 EP by Moose * ''Jack'', a 1984 album by Bone Orchard * '' J.A.C.K.'', a 2013 studio album by Forever the Sickest Kids

Songs

* "Jack" (song), a 2013 song by Breach * "Jack" (1980), a B-side song to "Tell The Children" by Sham 69 on the album ''Kings & Queens'' * "Jack" (1984), a song and single by Bone Orchard * "Jack" (2001), a song by Iced Earth from their album ''Horror Show'' (2001) * "Jack" (1983), a song and single by

Machinations (band) Machinations are an Australian synthpop band which formed in 1980. They reached the top 20 on the Kent Music Report albums chart with ''Big Music'' in 1985. Their top 30 hits on the related singles chart are " Pressure Sway", " No Say ...

* "Jack" (1983), a song and single by Mighty Gabby * "Jack", song by Pixie Lott from the '' Turn It Up'' (2009) album * "The Jack", a song by AC/DC originally on the album ''

T.N.T. Trinitrotoluene (), more commonly known as TNT, more specifically 2,4,6-trinitrotoluene, and by its preferred IUPAC name 2-methyl-1,3,5-trinitrobenzene, is a chemical compound with the formula C6H2(NO2)3CH3. TNT is occasionally used as a reagen ...

'' (1975)

Television

* ''Jack'' (TV series), a 3D-animated series broadcast by TVOntario *

Jack TV Jack TV (stylised as JACK TV) is an online web portal owned by Solar Entertainment Corporation and based in Mandaluyong, Metro Manila. It was known as a Philippine pay television network mainly offering multi-genre programming from the United ...

, a general entertainment channel in the Philippines (cable)

Other uses in arts, entertainment, and media

Jack (hero) __NOTOC__ Jack is an English hero and archetypal stock character appearing in multiple legends, fairy tales, and nursery rhymes. Examples of Jack tales Some of the most famous Jack Tales are "Jack and the Beanstalk", "Jack Frost", " Jack the ...

, an archetypal Cornish and English hero and stock character *

Jack FM Jack FM is a radio network brand, licensed by Sparknet Communications, with the exception of the European Union where it is licensed by Oxis Media. It plays an adult hits format, in most cases not using DJs. Format characteristics Stations ...

, a radio format and brand

Military

Jack (flag) A jack is a flag flown from a short jackstaff at the bow (front) of a vessel, while the ensign is flown on the stern (rear). Jacks on bowsprits or foremasts appeared in the 17th century. A country may have different jacks for different pu ...

, a national maritime flag flown by warships, e.g., **

Union Jack The Union Jack, or Union Flag, is the ''de facto'' national flag of the United Kingdom. Although no law has been passed making the Union Flag the official national flag of the United Kingdom, it has effectively become such through precedent. ...

* Jack, the Allied code-name of the Japanese

Mitsubishi J2M The Mitsubishi J2M ''Raiden'' (雷電, "Lightning Bolt") is a single-engined land-based fighter aircraft used by the Imperial Japanese Navy Air Service in World War II. The Allied reporting name was "Jack". Design and development The J2M was d ...

fighter of World War II

Technology

Computing and software

* Jack (CAD software), a 3-D ergonomics and human factors CAD package *

Jack (human modeling) The Jack human simulation system was developed at the Center for Human Modeling and Simulation at the University of Pennsylvania in the 1980s & 1990s under the direction of Professor Norman Badler. Conceived as an ergonomic assessment and virtual h ...

, a human modeling and simulation system *

JACK Audio Connection Kit JACK Audio Connection Kit (or JACK; a recursive acronym) is a professional sound server API and pair of daemon implementations to provide real-time, low-latency connections for both audio and MIDI data between applications. JACK was developed by ...

, a computer sound server * JACK Intelligent Agents, a multi-agent platform written in Java

Electrical interfaces

* Electrical connector, or "wall jack", a socket (often panel-mounted) intended to accept a plug *

Phone connector (audio) A phone connector, also known as phone jack, audio jack, headphone jack or jack plug, is a family of electrical connectors typically used for analog audio signals. A plug, the male connector, is inserted into the jack, the female connect ...

, commonly known as "audio jack", or "jack plug", or "phone jack" *

Registered jack A registered jack (RJ) is a standardized telecommunication network interface for connecting voice and data equipment to a service provided by a local exchange carrier or long distance carrier. Registration interfaces were first defined in the ...

, a standardized telecommunication network interface for connecting voice and data equipment

Mechanical tools

Jack (device) A jack is a mechanical lifting device used to apply great forces or lift heavy loads. A mechanical jack employs a screw thread for lifting heavy equipment. A hydraulic jack uses hydraulic power. The most common form is a car jack, floor jack o ...

, a device used to lift heavy objects **

Jackscrew A jackscrew, or screw jack, is a type of jack that is operated by turning a leadscrew. It is commonly used to lift moderately and heavy weights, such as vehicles; to raise and lower the horizontal stabilizers of aircraft; and as adjustable supp ...

, a device used to support heavy objects at various heights **

Pallet jack A pallet jack, also known as a pallet truck, pallet pump, pump truck, hand truck, scooter, dog, or jigger is a tool used to lift and move pallets. Pallet jacks are the most basic form of a forklift and are intended to move pallets within a ware ...

, a device with two forks used to lift and move pallets; the powered version is known as a forklift ** Strand jack, used in construction and engineering, and is capable of lifting hundreds of tonnes * Boot jack, a device for removing boots *

Jack plane A jack plane is a general-purpose woodworking bench plane, used for dressing timber down to size in preparation for truing and/or edge jointing. It is usually the first plane used on rough stock, but for rougher work it can be preceded by the sc ...

, a tool for smoothing wood * Roasting jack, a device for turning a spit

Other uses

* Jack (mascot), the mascot of Jack in the Box restaurants *

Cracker Jack Cracker Jack is an American brand of snack food that consists of molasses-flavored, caramel-coated popcorn, and peanuts, well known for being packaged with a prize of trivial value inside. The Cracker Jack name and slogan, "The More You Eat The ...

and Cracker Jack'D, snack foods *

Jack Daniel's Jack Daniel's is a brand of Tennessee whiskey. It is produced in Lynchburg, Tennessee, by the Jack Daniel Distillery, which has been owned by the Brown–Forman Corporation since 1956. Packaged in square bottles, Jack Daniel's "Black Label" ...

, a Tennessee whiskey distillery, whose product is sometimes referred to as "Jack" *

Jack of plate A jack of plate is a type of armour made up of small iron plates sewn between layers of felt and canvas. They were commonly referred to simply as a "jack" (although this could also refer to any outer garment). This type of armour was used by co ...

or jack, a type of armor * Jack's (store), a British Discount supermarket chain *

Monterey Jack Monterey Jack, sometimes shortened to Jack, is a Californian white, semi-hard cheese made using cow's milk, with a mild flavor and slight sweetness. It has been called "an American original" and "as a vestige of Spanish rule in the early nineteen ...

, a variety of cheese *

Sailor A sailor, seaman, mariner, or seafarer is a person who works aboard a watercraft as part of its crew, and may work in any one of a number of different fields that are related to the operation and maintenance of a ship. The profession of the s ...

, "jack" in obsolete usage *

Sailor Jack Cracker Jack is an American brand of snack food that consists of molasses-flavored, caramel-coated popcorn, and peanuts, well known for being packaged with a prize of trivial value inside. The Cracker Jack name and slogan, "The More You Eat The ...

, he and his dog Bingo are the mascots for Cracker Jack snack food * Yukon Jack (liqueur), a Canadian whisky with honey *

Jack Tar Jack Tar (also Jacktar, Jack-tar or Tar) is a common English term originally used to refer to seamen of the Merchant or Royal Navy, particularly during the period of the British Empire. By World War I the term was used as a nickname for those i ...

, term for a sailor