UFF or Uff may refer to:
Paramilitaries Uganda Freedom Fighters, a faction in the Bush War Ulster Freedom Fighters, a loyalist faction in Northern Ireland United Freedom Front, an American left-wing group
Science and technology Universal File Format, in computer-aided test software Universal force field, in chemical modelling
Sport Uzbekistan Football Federation Team UFF, a Brazilian cycling team
Other uses Uff!, a Venezuelan boy band , a university in Brazil UltraFast Fibre, a New Zealand Ultra-Fast Broadband firm , a Danish humanitarian project
See also Uffie (born 1987), American musician