Delta commonly refers to: *

Delta (letter) Delta (; uppercase Δ, lowercase δ or 𝛿; el, δέλτα, ''délta'', ) is the fourth letter of the Greek alphabet. In the system of Greek numerals it has a value of 4. It was derived from the Phoenician letter dalet 𐤃. Letters that come ...

(Δ or δ), a letter of the Greek alphabet * River delta, at a river mouth * D ( NATO phonetic alphabet: "Delta") * Delta Air Lines, US * Delta variant of SARS-CoV-2 that causes COVID-19 Delta may also refer to:

Places

Canada

* Delta, British Columbia **

Delta (electoral district) Delta is a federal electoral district in British Columbia, Canada, that was represented in the House of Commons of Canada from 1988 to 1997 and since 2015. History The 1988–1997 edition of this riding was created in 1987 from parts of Fr ...

, a federal electoral district **

Delta (provincial electoral district) Delta was the name of a provincial electoral district in the Canadian province of British Columbia based on the municipality of Delta at the mouth of the Fraser River between the city of Vancouver and the US border. It made its first appearance o ...

* Delta, Ontario

United States

Mississippi Delta The Mississippi Delta, also known as the Yazoo–Mississippi Delta, or simply the Delta, is the distinctive northwest section of the U.S. state of Mississippi (and portions of Arkansas and Louisiana) that lies between the Mississippi and Yazoo ...

* Delta, Alabama * Delta Junction, Alaska * Delta, Colorado * Delta, Illinois * Delta, Iowa * Delta, Kentucky * Delta, Louisiana * Delta, Missouri * Delta, North Carolina * Delta, Ohio * Delta, Pennsylvania * Sacramento–San Joaquin River Delta, California * Delta, Utah * Delta, Wisconsin, a town * Delta (community), Wisconsin * Delta County (disambiguation)

Elsewhere

* Delta Island, Antarctica * Delta Stream, Antarctica * Delta, Minas Gerais, Brazil * Nile Delta, Egypt * Delta, Thessaloniki, Greece * Delta State, Nigeria * Delta, Astrakhan Oblast, Russia * Colonia Delta, Uruguay

Arts and entertainment

Fictional characters

* Delta Megazord, a zord in ''Power Rangers in Space'' * Deltas, a working class in Aldous Huxley's ''Brave New World''

Film and television

* Delta (2008 film), ''Delta'' (2008 film), Hungary * Delta (American TV series), ''Delta'' (American TV series), 1992 * Delta (Australian TV series), 1969 * ''Macross Delta'' or Macross Δ, in the ''Macross'' anime series

Music

* alt-J (∆), British indie band * Delta blues, a music style * "Delta", a song by Crosby, Stills & Nash from ''Daylight Again'', 1982

Albums

* Delta (video album), ''Delta'' (video album), 2003, Delta Goodrem * Delta (Delta Goodrem album), ''Delta'' (Delta Goodrem album), 2007 * Delta (Visions of Atlantis album), ''Delta'' (Visions of Atlantis album), 2011 * Delta (Mumford & Sons album), ''Delta'' (Mumford & Sons album), 2018 * ''Delta'', by Shapeshifter (band), Shapeshifter, 2013

Other media

* Delta (magazine), ''Delta'' (magazine), a poetry magazine * Delta (science magazine), ''Delta'' (science magazine) * Delta (video game), ''Delta'' (video game), 1987 * Delta FM or Delta Radio, a former UK radio station

Businesses and organizations

Companies

* Delta Air Lines, US ** Delta Connection, a Delta Air Lines brand * Delta Bank, Ukraine * Delta Cafés, a Portuguese coffee company * Delta Electric Company * Delta Electricity, Australia * Delta Electronics, Taiwan * Delta Faucet Company * Delta Holding, a Serbian corporation * Delta Hotels, Canada * Delta Machinery, a tool company * Delta Motor Corporation, South Africa * Former Delta Motors Corporation, Philippines * DELTA (Dutch cable operator)

Schools

* Delta State (disambiguation), several universities * Delta College (disambiguation) * Delta Academy (disambiguation) * Delta Secondary School (disambiguation) * Delta High School (disambiguation) * Delta School District (disambiguation) * Delta Career Education Corporation, US * Delta International University of New Orleans, Louisiana, US * Delta Schools, Riyadh, Saudi Arabia

Law enforcement

* Delta (Norwegian police unit)

Military

* Delta Force, U.S. Army special operations * Space Force Delta, US Space Force logo * Delta, a command echelon in the structure of the United States Space Force

Other organizations

* STC Delta, a Georgian R&D center * American Delta Party, an American political party * San Francisco Deltas, a soccer team * Delta Omicron, a music fraternity

Finance

* Delta (finance), rate of change of a value * Visa Delta or Visa Debit, a debit card

People

* Δ, signature of David Macbeth Moir (1798–1851), Scottish physician and writer * Delta Burke (born 1956), American actress * Delta Goodrem (born 1984), Australian singer * Delta Work, drag queen * Penelope Delta (1874–1941), Greek author * Delta (wrestler) (born 1985), Mexican

Science, technology, and mathematics

* The upper- and lower-case Greek letter Delta (letter), delta (Δ, δ) are used in many fields to denote a difference in some parameter

Chemistry

* Δ (delta), right-handed isomer in a Coordination complex#Optical isomerism, coordination complex *Allene#Delta convention, Delta convention, for designating allenes * Δ is used to specify certain Fatty acid#Carbon atom numbering, fatty acids

Computing

* Delta (computer), a Russian ZX Spectrum clone * Delta encoding or delta compression, in computer communications * Delta timing, in relation to hardware and network responsiveness * DELTA, an OpenVMS#Programming, OpenVMS debugger

Earth sciences

* Epicentral distance (Δ) * Subtropical Storm Delta (1972), Atlantic * Tropical Storm Delta (2005), Atlantic * Hurricane Delta, Hurricane Delta (2020), Atlantic

Mathematics

* Δ, a difference of state between two before and after state schemas in the Z notation *

\delta

, the first Feigenbaum constant * Delta connective, a unary connective in t-norm fuzzy logics * Delta method for approximating the distribution of a function * Difference operator (Δ) * Dirac delta function ( function) * Kronecker delta (

\delta_

) * Laplace operator (Δ) * Modular discriminant (Δ) * Symmetric difference (Δ) * Non-inferiority margin (δ) * Δ, a class of sets in the analytical hierarchy, for every natural number ''m'', ''n''

Medicine and biology

* Delta (ligand), an activator of the notch signaling pathway * DELTA (taxonomy), a data format for descriptions of living things * Delta (wasp), ''Delta'' (wasp), Old World genus of potter wasps * Delta (moth), ''Delta'' (moth) genus, also ''Campydelta'' * Delta variant of SARS-CoV-2 that causes COVID-19 * Delta wave, a brain wave

Vehicles

* Delta (rocket family) * Delta, a tricycle layout * Daihatsu Delta, trucks * Delta formation, V-shaped aircraft formation * Delta wing, a triangular aircraft wing * Delta-class submarine, ''Delta''-class submarine (NATO reporting name), Soviet/Russian SSBN * GM Delta platform, a car platform * Lancia Delta, an Italian rally car * Oldsmobile Delta 88, a GM 1965–1983 * TrikeBuggy Delta, an American ultralight trike

Other uses in science and technology

* Refractory delta, in the roof of an electric arc furnace * Delta, a quadra group used in socionics#Quadras, socionics * Delta baryon, a subatomic particle * Delta circuit, in Three-phase electric power#Delta (Δ), three-phase electric power * Delta robot, a delta-shaped parallel robot * Ilford Delta, a photographic film

Sport

* Delta (horse) (1946–1960), Australia * Mississippi Valley State Delta Devils and Devilettes, sports teams, Itta Bena, Mississippi, US * San Francisco Deltas, a soccer team * Delta (orienteering club), a former Finnish club

Other uses

* Delta Dental, an American system * Delta Works, a flood-protection works in the Netherlands * Delta, a font designed by Aldo Novarese * Diploma in Teaching English to Speakers of Other Languages