FL

FL or variations may refer to:

Places

• Florida (United States postal abbreviation)
• Liechtenstein (International license plate code)

Businesses and organizations

• AirTran Airways (IATA airline code)
• Foot Locker, Inc. (ticker symbol)
• FL Group, an Icelandic investment company with an emphasis on flight and tourism industry
• The Football League in England

Measures

• femtolitre, a metric unit of volume
• foot-lambert, a unit of luminance
• Flawless, a grade of diamond clarity
• Fork length, a standard fish measurement
• Forestay Length, in sailing

Mathematics and computing

• FL (complexity), a class of functions in complexity theory
• FL (programming language)
• FL Studio, a music production software program
• Freelancer (computer game)
• Flash in Adobe Flash, a professional Flash authoring tool by Adobe, as part of Adobe Creative Suite

Numismatics

• Florin, various coins
• Guilder, various coins also sometimes called florin

Other

• Fastest Lap in motorsports
• Foreign language
• Flight level, a nominal altitude designation in aviation
• Freelancer, a self-employed professional
• Fully Licensed, a restaurant licensed to sell liquor
• Fanlisting
• floruit (Latin, "flourished"), used to indicate periods when a person, organization, or species was influential
• Fully Loaded
• fl (fl), a common typographical ligature