FLA may refer to:

• Fair Labor Association
• Fellow of the Library Association
• Finance and Leasing Association, in the United Kingdom
• Florida Library Association, association for librarians in Florida
• Free Luxembourger Workers' Union (German: Freie Lëtzebuerger Arbechterverband)
• Florida Library Association

• First language acquisition
• First language attrition
• Foreign Language Assistant
• Forest Lake Academy, in Apopka, Florida, United States
• Fraternity Leadership Association

• Argentine Libertarian Federation (Spanish: Federación Libertaria Argentina)
• Azores Liberation Front (Portuguese: Frente de Libertação dos Açores)
• Family Law Act (disambiguation)
• Football Lads Alliance, UK campaign group

• Fight Like Apes, an Irish shoegaze band
• Front Line Assembly, a Canadian electro-industrial band

• Jens P. Flå (1923–2002), Norwegian politician

• Flå Municipality, a municipality in Buskerud county, Norway
• Flå Station, a railway station in Buskerud county, Norway
• Flå Municipality (Sør-Trøndelag), a former municipality in the old Sør-Trøndelag county, Norway
• Flå, or Ler, a village in Melhus Municipality in Trøndelag county, Norway
• Flå Church, Trøndelag, a church in Melhus Municipality in Trøndelag county, Norway
• Fla., an abbreviation for Florida, a state in the United States

• Clube de Regatas do Flamengo, a Brazilian sports association
• Flå IL, a Norwegian sports club
• Florida Panthers, an ice hockey team based in Sunrise, Florida, United States
• Luxembourg Athletics Federation (French: Fédération Luxembourgeoise d’Athlétisme)

• Air Florida, a defunct American airline
• Faire: L'amour, a French drama film
• Free-living Amoebozoa infection
• Gustavo Artunduaga Paredes Airport in Florencia, Caquetá, Colombia
• Salish-Spokane-Kalispel language, an indigenous language of the United States
• Fasciclin-like arabinogalactan protein, a class of plant proteins
• Full-load amps, the maximum current of an electric motor
• .FLA file format for Adobe Flash Player