UFL or ufl may refer to:

Chemistry: Upper flammable limit, the flammability limit describing the richest flammable mixture of a combustible gas

Colleges and universities: University of Florida, a public land-grant, space-grant, research university located in Gainesville, Florida Private University in the Principality of Liechtenstein (), a private medical school located in Liechtenstein

Electronics: Hirose U.FL, a miniature coaxial RF connector for high-frequency signals manufactured by Hirose Electric Group

Organizations Union of Luxembourg Women, () International Legion (Ukraine), also known as the Ukrainian Foreign Legion

Sports: UFL (video game), an association football simulation video game Ukrainian First League, association football league in Ukraine United Football League (1961–1964), an American football league that operated from 1961 to 1964 United Football League (2009–2012), an American football league that operated from 2009 to 2012 United Football League (2024–present), an American football league that began play in 2024, formed from the merger of the second USFL with the second XFL United Football League (Philippines), an association football league in the Philippines that operated from 2010 to 2016

See also

United Football League (disambiguation) Uranium fluoride (disambiguation) USFL (disambiguation)