FFS may refer to:

Computing

* Feige–Fiat–Shamir identification scheme, in cryptography * Flash file system * Formatted File System * Find first set, a type of bit operation * FreeFileSync, a software package * Amiga Fast File System * Berkeley Fast File System

Music

* FFS (band), a rock supergroup of Franz Ferdinand and Sparks ** FFS (album), ''FFS'' (album), their debut album

Organizations

Political organizations

* For our Future’s Sake, a UK campaign group calling for a public vote (People's Vote) on the final Brexit deal * Social Forces Front (French: '), a political party in Burkina Faso * Socialist Forces Front (French: '), a political party in Algeria

Other organizations

* Frankford Friends School, in Philadelphia, Pennsylvania, United States * French Federation of Speleology * Swiss Federal Railways (Italian: ')

Places

* FFS Arena, in Lund, Sweden * Frankfurt South station, in Germany * French Frigate Shoals, an island in the Northwestern Hawaiian Islands

Science and technology

* Facial feminization surgery * Free-fall sensor * Fringe field switching * Full flight simulator

Other uses

* Farmer Field School, a community development process * Fee-for-service, a payment model * For Film's Sake, Australian women's film festival * Fully fashioned stockings, stockings with reinforce toe and tops {{disambiguation