FFS

FFS is a commonly used initialism for "for fuck's sake". It is often said or typed as a form of minced oath by abbreviation. "FFS" may also refer to:

Computing

• Feige–Fiat–Shamir identification scheme, in cryptography
• Find first set, a type of bit operation
• FreeFileSync, a software package

File systems

• Flash file system
• Formatted File System
• Amiga Fast File System
• Unix File System often called Fast File System

Music

• FFS (band), a rock supergroup of Franz Ferdinand and Sparks
• 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: ')