XL or variants may stand for:
Arts and entertainment
- XL (band), a J-Pop band
- XL Recordings, a British independent record label
- XL, a character in the animated series Buzz Lightyear of Star Command
Businesses and organizations
Transportation
- XL Airways France, a French airline
- XL Airways Germany, a German charter airline
- XL Leisure Group, a major United Kingdom tour operator, which ceased operations in 2008
- XL Airways UK, a defunct British airline which was part of XL Leisure Group
- LAN Ecuador (IATA airline code XL)
- the base trim level for Ford trucks
Other businesses and organizations
- XL Axiata, an Indonesian mobile phone network operator
- XL Center, a civic center in Hartford, Connecticut, United States
- XL Cola, a Swedish soft drink
- XL Group, a financial services company headquartered in Ireland with executive offices in Bermuda
- XL Recordings, a British independent record label
- Excel Esports, a British esports organization (shortened name is "XL")
- North Texas Intermediate Sanctions Facility, a privately operated prison facility (TDCJ shorthand is "XL")
Science and technology
- XL, inductive reactance, a property of an inductor
- XL (programming language), a computer programming language designed to support concept programming
- XL series computers, in the Atari 8-bit family (including the 600XL, 800XL and 1200XL)
- Weather Star XL (also known as just XL), a computer used by The Weather Channel for local forecasts
- Nintendo DSi XL, the fourth and final model in the Nintendo DS line, released in 2009, and a larger version of the Nintendo DSi
- Nintendo 3DS XL, the second model in the Nintendo 3DS line, released in 2012, and a larger version of the original Nintendo 3DS
- New Nintendo 3DS XL, the fifth model in the Nintendo 3DS line, released in 2014, and a larger version of the Nintendo 3DS XL and New Nintendo 3DS (which is a larger version of the original 3DS)
- New Nintendo 2DS XL, the sixth model in the Nintendo 3DS line, released in 2017, and a larger version of the Nintendo 2DS
Other uses
- American bully XL, type of dog
- 40 (number) in Roman numerals
- XL (Extra large), a clothing size
- Excess-of-loss reinsurance, a particular non-proportional type of reinsurance contact