{{wiktionary|Alt|alt|alt-}} '''Alt''' or '''ALT''' may refer to: {{tocright}} == Abbreviations for words== * Alt account, an alternative online identity also known as a sock puppet account * Alternate character, in online gaming * Alternate route, type of highway designation * Alternating group, mathematical group of even permutations * Alternative lifestyle * Alternative rock * Alternator * Alternative subculture or youth subculture, particularly with regard to fashion or aesthetics ("alt fashion," "alt aesthetics") * Altimeter * Altitude

== Acronyms and initialisms== * Aboriginal Land Trust, a type of organisation in Australia * Alanine transaminase, a liver enzyme of the transaminase family * Altona railway station, Melbourne * Alternative Lengthening of Telomeres, in cellular biology * Approach and Landing Tests, in space transportation * Argon laser trabeculoplasty, a type of glaucoma surgery * Assistant Language Teacher, in Japan * Association for Learning Technology, in Oxford, England * Association for Linguistic Typology * Accelerated life testing, testing a product in excess of its normal service parameters * International Conference on Algorithmic Learning Theory, a conference in theoretical computer science

== Places and geographical features == * Alt, Greater Manchester, formerly a constituent parish of Limehurst Rural District, near Oldham, England * River Alt, in Merseyside, England * Olt (river) ({{langx|de|Alt|links=no}}), river in Romania *Altoona Transportation Center, Pennsylvania, U.S. (Amtrak code ALT) *Altrincham station, in Altrincham, England (National Rail station code ALT) == People == * Alt (surname) * A.L.T. (born 1970), Mexican-American rapper *André Leon Talley, fashion magazine editor

== Music == * ALT (band), Andy White, Liam Ó Maonlaí, Tim Finn * ''ALT'' (album), a 2012 music album by Van der Graaf Generator * ''ALT'' (EP), a 2015 EP by Vanna * Alt-J, band * in alt, singing in the octave above the treble staff (G<sub>5</sub> to F<sub>6</sub>) * ALT, a robotic singer with songs in the Bemani game series including Pop'n Music, Reflec Beat and Jubeat

== Technology == * Southern Altai language (ISO-639-3 code "alt") * Alt attribute, in HTML computer language * Alt key, on a computer keyboard * ALT Linux, computer software * ''alt.*'' hierarchy, in USENET newsgroups

== Other== * Altbier, German beer * ''Alt'' (film), a 2013 Venezuelan short film * Alt-right, an abbreviation of alternative right, a loosely connected far-right, white nationalist movement based largely in the United States {{disambiguation}} {{DEFAULTSORT:Alt}}