SFK

SFK may refer to:


 * Sound Forge, peak audio file extension
 * SFK (album), 2024 album by Conway the Machine
 * Something for Kate, Australian rock band
 * Siófok-Kiliti Airport, Hungary (IATA code)
 * Suffolk, county in England, Chapman code
 * SFK Lyn, Norwegian sports club
 * SFK 2000, women's football club from Sarajevo, Bosnia and Herzegovina
 * SFK Varavīksne, Latvian football club
 * ŠFK Prenaks Jablonec, Slovak football team
 * SFK Nová Ves nad Váhom, Slovak football team