Delta

Delta commonly refers to:


 * Delta (letter) (Δ or δ), the fourth letter of the Greek alphabet
 * D (NATO phonetic alphabet: "Delta"), the fourth letter in the Latin alphabet
 * River delta, at a river mouth
 * Delta Air Lines, US

Delta may also refer to:

Canada

 * Delta, British Columbia
 * Delta (federal electoral district), a federal electoral district
 * Delta (provincial electoral district)
 * Delta, Ontario

United States

 * Mississippi Delta
 * Arkansas Delta
 * 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 and an unincorporated community
 * 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

Fictional elements

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

Film and television

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

Music

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

Albums

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

Other media

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

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
 * Delta Computer, a defunct computer company
 * Delta Motors Corporation, a former automobile company in the Philippines
 * Delta (company), a 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 and military

 * Delta (Norwegian police unit)
 * 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

 * Delta Sigma Theta, a historically Black college sorority often referred to simply as "Delta".
 * STC Delta, a Georgian R&D center
 * American Delta Party, an American political party
 * San Francisco Deltas, a soccer team

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 (Gabriel A. Villarreal), American drag performer
 * Penelope Delta (1874–1941), Greek author
 * Delta (wrestler) (born 1985), Mexican professional wrestler

Chemistry

 * Δ (delta), right-handed isomer in a coordination complex
 * Delta convention, for designating allenes
 * Δ, notation for double bond positions in 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 (emulator), a video game console emulator
 * DELTA, an OpenVMS debugger

Earth sciences

 * Epicentral distance (Δ)
 * Subtropical Storm Delta (1972), Atlantic
 * Tropical Storm Delta (2005), Atlantic
 * 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 ($δ$ function)
 * Kronecker delta ($$\delta_{ij}$$)
 * Laplace operator (Δ)
 * Modular discriminant (Δ)
 * Symmetric difference (Δ)
 * Non-inferiority margin (δ)
 * Δ$m n$, 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), Old World genus of potter wasps
 * Delta (moth) (Campydelta), a genus
 * 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 (NATO reporting name), Soviet/Russian SSBN
 * General Motors 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 science and technology

 * Refractory delta, in the roof of an electric arc furnace
 * Delta baryon, a subatomic particle
 * Delta circuit, in three-phase electric power
 * Delta robot, a delta-shaped parallel robot
 * Ilford Delta, a photographic film
 * Depleted Lean-channel Transistor, the first type of fin field-effect transistor

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 Finnish former 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
 * Delta, a quadra group used in socionics