Alpha ( or ) is the first letter of the Greek alphabet.

Alpha or ALPHA may also refer to:

Letters

  • Latin alpha (), a letter of the Latin alphabet
  • , a glyph in the International Phonetic Alphabet
  • , a vowel in the General Alphabet of Cameroon Languages
  • Alfa, the first letter in the NATO phonetic alphabet

Art and entertainment

Books and comics

  • Alpha (Lombard), a Franco-Belgian comics series
  • The Alphas, a young-adult novel series by Lisi Harrison
  • Alpha 1 through Alpha 9, anthologies edited by Robert Silverberg

Film and television

  • Alpha (2018 film), an American prehistoric adventure film
  • Alpha (2019 film), a Bangladeshi film
  • Alpha (2025 film), a French horror film
  • Alpha (2026 film), an upcoming Indian film of the YRF Spy Universe
  • Alpha., a 2024 Dutch adventure film
  • Alpha Alpha, a German science fantasy series
  • Alphas, an American science fiction TV series 2011–2012
  • "Alpha" (The X-Files), a sixth-season episode of The X-Files
  • Alpha and Omega (radio plays)
  • Alpha TV, a Greek television channel

Fictional characters and places

  • Alpha (DC Comics), a character from DC Comics
  • Alpha (Marvel Comics), a character from Marvel Comics
  • Alpha (The Walking Dead, an antagonist from the Walking Dead comic and TV series
  • Alpha 4 (Power Rangers), Alpha 5 (Power Rangers)<!--OK-->, Alpha 6 (Power Rangers)<!--OK-->, or Alpha 7 (Power Rangers)<!--OK-->, characters in the Power Rangers universe
  • Alpha the Ultimate Mutant, a character in Marvel Comics
  • Moonbase Alpha (Space: 1999), the primary setting for the television series Space: 1999
  • Alpha, a wolf character in the animated film Storks
  • Alpha, the lead dog from the 2009 animated film Up
  • Alpha Trion, an autobot character in The Transformers
  • Alpha, a fictional computer in Mike Walker's radio play Alpha
  • , the first member of Shadow Garden and leader of the Seven Shadows in the light novel and anime series The Eminence in Shadow
  • Alpha, the main antagonist of Xenoblade Chronicles 3: Future Redeemed
  • Alpha, an organization in the YRF Spy Universe
  • Alpha, a humanised Dalek from The Evil of the Daleks

Gaming

  • Alpha (Magic: The Gathering), a card set
  • Alpha (video game), released in 1986

Internet properties

  • Airlock Alpha, a science fiction website primarily dedicated to Star Trek

Music

  • Alpha, a French early music label record label, now part of Outhere
  • Alpha chord, in the octatonic scale
  • Alpha (band), a British electronic music group

Albums

  • Alpha (Aitana album) (2023)
  • Alpha (Alice Nine album) (2007)
  • Alpha (Asia album) (1983)
  • Alpha (Charlotte Day Wilson album) (2021)
  • Alpha (CL album) (2021)
  • Alpha (Jelena Karleuša album) (2023)
  • Alpha (Selena y Los Dinos album) (1986)
  • Alpha (Sevendust album) (2007)
  • Alpha (Shenseea album) (2022)
  • Alpha (War of Ages album) (2017)

Songs

  • "Alpha" (song), a 2014 song by Kollegah
  • "Alpha", a track on the 1976 album Albedo 0.39 by Vangelis
  • "Alpha", a song by C418 from the 2013 soundtrack Minecraft – Volume Beta

Business

  • Alpha Bank, a Greek bank, or their stock symbol ALPHA
  • Alpha Books, an imprint of Penguin Group
  • Alpha Industries, an American clothing company
  • Alpha Media, an American radio broadcasting company
  • Alpha (shipping company), a Norwegian shipping and ferry operator
  • Alpha TV, a Greek terrestrial channel
  • Alpha Video, an American entertainment company
  • Alpha, a streaming service operated by Legendary Entertainment from 2016 to 2019
  • Alpha (Australian magazine), an Australian men's sport magazine
  • Alpha, an investor magazine, later incorporated into Absolute Return + Alpha

People

  • Alpha (given name), a list of people with the name
  • Elizabeth Alpha-Lavalie (1947–2013), Sierra Leonian politician
  • Jenny Alpha (1910–2010), Martinique-born French actress and singer

Places

United States of America

  • Alpha, California, former settlement
  • Alpha, Illinois, a village
  • Alpha, Iowa, an unincorporated community
  • Alpha, Kentucky, an unincorporated community
  • Alpha, Maryland, an unincorporated community
  • Alpha, Michigan, a village
  • Alpha, Minnesota, a city
  • Alpha, Missouri, an unincorporated community
  • Alpha, New Jersey, a borough
  • Alpha, Ohio, a neighborhood of the city of Beavercreek
  • Alpha, Oregon, an unincorporated community
  • Alpha (Morristown, Tennessee), a neighborhood
  • Alpha, Texas, an unincorporated freedman's town
  • Alpha, Virginia, an unincorporated community
  • Alpha, Washington, an unincorporated community
  • Alpha, Wisconsin, an unincorporated community
  • Alpha Ridge, Alaska, a mountain ridge

Elsewhere

  • Alpha, Queensland, a town in Australia
  • Alpha Ridge, an undersea ridge in the Arctic Ocean

Science, technology and mathematics

Biology

  • Alpha (ethology) (also "alpha male" and "alpha female"), the highest ranking individuals in a community of social animals
  • Alpha helixes, which are a type of secondary protein structures
  • α receptors, a type of Adrenergic receptor
  • SARS-CoV-2 Alpha variant, one of the variants of SARS-CoV-2, the virus that causes COVID-19
  • A class of Immunoglobulin heavy chains that defines IgA type antibodies
  • Trinchesia alpha, a species of sea slug

Computing

  • Alpha (programming language), an early database language
  • Alpha compositing, an image processing technique
  • Alpha phase of a software release life cycle
  • AlphaServer, DEC now HP machine successor to the VAX
  • AlphaStation, DEC now HP workstation successor to the VAX
  • DEC Alpha, an instruction set architecture developed by Digital Equipment Corporation (DEC)
  • Wolfram Alpha, a computational knowledge engine

Mathematics and statistics

  • Alpha (finance), a measurement of active return on an investment
  • Cronbach's alpha, a statistical measure of reliability
  • Angular eccentricity (conventional symbol "α")
  • Navigational azimuth (symbol "α")
  • One of the Feigenbaum constants describing a bifurcation diagram, in mathematics (symbol "α")
  • The probability of a type I error in statistics (symbol "α")
  • The significance level of a statistical test (symbol "α")
  • The inverse Ackermann function
  • α, sometimes used as a placeholder for ordinal numbers

Science

  • ALPHA, a particle physics experiment at CERN
  • ALPHA Collaboration, (Antihydrogen Laser PHysics Apparatus), a team of scientists
  • Alpha particle, form of particle radiation
  • Alpha waves, recorded by electroencephalography
  • Angle of attack in aerodynamics (symbol "α")
  • Angular acceleration in physics (symbol "α")
  • Coefficient of thermal expansion in thermodynamics (symbol "α")
  • Fine-structure constant in physics (symbol "α")
  • Thermal diffusivity in thermodynamics (symbol "α")
  • Common-base current gain of a transistor in electronics (symbol "α")
  • α, the isotope fractionation factor between two substances in geochemistry
  • Alpha, the brightest star in a constellation according to the Bayer designation

Technology

  • Alpha (navigation), a Russian radio navigation system
  • Minolta Alpha, the Japanese name for a series of SLR cameras known as Maxxum or Dynax elsewhere
  • Sony α or Sony Alpha, a digital SLR series by Sony, direct successor to the Minolta Alpha series
  • Samsung Galaxy Alpha, 2014 Android smartphone by Samsung

Transportation

  • GM Alpha platform, the underpinning of various GM vehicles
  • Alpha (sternwheeler), a 19th-century river vessel
  • Alpha 2000, a light aircraft built in New Zealand
  • Dassault/Dornier Alpha Jet, a French/German jet trainer aircraft
  • Firefly Alpha, an orbital rocket
  • Kohler Alpha, an American glider
  • Pipistrel Alpha Trainer, a Slovenian light-sport aircraft
  • , a Greek cargo ship in service 1924–30

Tropical and subtropical cyclones

  • Subtropical Storm Alpha (1972), first storm of the 1972 Atlantic hurricane season
  • Tropical Storm Alpha (2005), twenty-third storm of the 2005 Atlantic hurricane season
  • Subtropical Storm Alpha (2020), twenty-second storm of the 2020 Atlantic hurricane season

Other uses

  • ALPHA (drug), a psychoactive drug
  • NATO phonetic alphabet, series of letters described by NATO.
  • Generation Alpha, the demographic cohort succeeding Generation Z
  • Alpha course, an introductory course in Christianity
  • Alpha Group, a Russian counterterrorism unit
  • Alpha Secondary School, a high school in Burnaby, British Columbia, Canada
  • Alpha Boys School, a school in Kingston, Jamaica
  • Alpha, or Service "A", one of the uniforms of the United States Marine Corps

See also

  • Alpha and Omega (disambiguation)
  • Alpha value (disambiguation)
  • Alfa (disambiguation)
  • Moonbase Alpha (disambiguation)
  • A, the letter
  • Space Station Alpha
  • Space Complex Alpha
  • Beginning (disambiguation)
  • Birth (disambiguation)
  • Construction (disambiguation)