FLT may refer to:
Mathematics Fermat's Last Theorem, in number theory Fermat's little theorem, using modular arithmetic Finite Legendre transform, in algebra
Medicine Alovudine (fluorothymidine), a pharmaceutical drug Fluorothymidine F-18, a radiolabeled pharmaceutical drug
Places Finger Lakes Trail, New York, United States Flitwick railway station, England Phaeton Airport, Haiti
Organizations Fairlight (group), a 1980s Commodore warez group Flight Centre, an Australian travel company (founded 1982; ASX ticker:FLT) Free Federation of Workers (), a 20th-century Puerto Rican trade union Liberation Front of Chad (), 1965–1976 Luxembourg Tennis Federation (French: ), a sports governing body (founded 1946)
Other uses Flutter-tonguing, in music Foreign Language Teaching, in education FlutterCoin, crypto token (in computing)
See also FTL (disambiguation)