SFF may refer to:
Arts subito fortissimo (), a dynamic marking in music Science fiction and fantasy, a broad genre also known as speculative fiction
Festivals Sarajevo Film Festival, in Bosnia and Herzegovina Saraqusta Film Festival, in Spain Sydney Film Festival, in Australia
Television Peepoodo & the Super Fuck Friends, an adult animated series
Businesses and organizations Science Festival Foundation, organizers of the 2008 World Science Festival Shooters, Fishers and Farmers Party, an Australian political party Small Form Factor Committee, an electronics industry group Space Frontier Foundation, an American space advocacy non-profit organization Spiritual Frontiers Fellowship, an American not-for-profit volunteer organization Stone Family Foundation, a British charitable organization
Military Special Field Force, a Namibian paramilitary police unit Special Frontier Force, an Indian paramilitary special force
Sports Seychelles Football Federation Somali Football Federation
Science and technology Small form factor PC, a desktop computer with minimal volume and footprint Standard flowgram format, a binary file format to encode results of pyrosequencing
Other uses Felts Field (IATA airport code: SFF), an airport near Spokane, Washington, US