Alt

Alt or ALT may refer to:

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) (Alt), 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 (G5 to F6)
 * 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