TUF may refer to: Transformer utilization factor Transcript of unknown function The Ultimate Fighter, a reality television series The Update Framework, a secure software update framework Tours Loire Valley Airport, Tours, France (IATA airport code: TUF) The Unforgettable Fire, an album by Irish rock band U2 "The Unforgettable Fire" (song), a song from the album above "The Ultimate Fling", a song by Finnish rock band Poets of the Fall The United Force, a Guyanese political party Time-utility function, a mean for real time computing ASUS TUF (The Ultimate Force), an ASUS brand for affordable, mid-range and low-end gaming products. The Unifying Force, a Star Wars novel written by James Luceno The University of Faisalabad, a private university in Pakistan See also Tuf Borland (born 1998), American football player Tuf Voyaging, a 1986 science fiction novel by George R. R. Martin Tuff, a type of rock consisting of consolidated volcanic ash Tuff (disambiguation) Tough (disambiguation) pt:TUF