# Alpha (disambiguation)

Alpha (Α or α) is the first letter of the Greek alphabet.
Alpha or ALPHA may also refer to:

## Letters

* Latin alpha (ɑ), a letter of the Latin alphabet
* ɑ, a glyph in the International Phonetic Alphabet
* ɑ, 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 TV

* Alpha (2018 film), an American prehistoric adventure film
* Alpha (2019 film), a Bangladeshi film
* Alpha (upcoming film), an upcoming French film
* Alpha Alpha, 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, a Greek television channel
* Alpha, an upcoming installment in the YRF Spy Universe

### 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), Alpha 6 (Power Rangers), or Alpha 7 (Power Rangers), 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
* Alpha Lexa, a character from Ryan's World
* Alpha, the main antagonist of Xenoblade Chronicles 3: Future Redeemed

### 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
* Alpha (Kazakh band), a Kazakh Q-pop 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 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
* Alpha Lee (1994–), professor at the University of Cambridge's Department of Physics

## 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
* Ponera alpha, a species of ant

### 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
* Advance Alpha, a Swiss paraglider design
* 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

## 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 (psychedelic), a psychedelic drug
* 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