TUF

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
 * TV-U Fukushima, a commercial broadcaster in Japan