Beta (B, β) is the second letter of the Greek alphabet. Beta or BETA may also refer to: Arts, entertainment, and media Films Beta (film), a 1992 Bollywood film directed by Indra Kumar Beta Test (film), a 2016 American science fiction film directed by Nicholas Gyeney The Beta Test, a 2021 American dark comedy film directed by Jim Cummings Fictional entities BETA (Muv-Luv) (Beings of the Extra Terrestrial origin which is Adversary of human race), an alien race from the video game series Muv-Luv β, a classification of strength in the Earthbound, or Mother, series of Nintendo role-playing games Beta, a wolf character in the animated film Storks BETA, an organization in the 1986 TV series The Adventures of the Galaxy Rangers Beta (The Walking Dead), an antagonist in the Walking Dead comic series Beta Hirogen, the second in command of a Hirogen hunting party, as seen in Star Trek: Voyager Beta Quadrant, one of four quadrants in the galaxy in Star Trek Other uses in arts, entertainment, and media Beta (Magic: The Gathering), the second (revised) part of the first set of the card game Magic: The Gathering Beta chord Beta News Agency, Serbian independent news agency Beta Recordings, a record label headed by John B Lifetime (TV network), pre-launch branded as BETA beta, a combat robot competing in BattleBots Beta, a mountain biking magazine and website launched by Outside (company) in 2021 Computing BETA (programming language), a programming language Beta release, or betaware, a phase in software development before an official release Perpetual beta, software or a system that never leaves the beta development stage Mathematics, finance, and statistics Beta (finance), the β coefficient in the capital asset pricing model β, the probability of a Type II error in statistics; See Type I and type II errors β-reduction, a reduction rule for lambda calculus Beta distribution, in statistics, a family of continuous probability distributions Beta function, a special function also known as the Euler integral of the first kind Beta invariant, of a matroid Dirichlet beta function Eratosthenes, Greek mathematician nicknamed Beta (Βῆτα) Standardized coefficient or beta coefficient, in statistics, the estimate of an analysis performed on variables that have been standardized so that they have variances of 1 Organisations Beta (motorcycle manufacturer), an Italian off-road motorcycles manufacturer BETA Cargo, a defunct Brazilian airline Beta Technologies, an America electric aircraft manufacturer British Equestrian Trade Association, a membership organisation