SF
- SF
- (s) Fleet Submarine (retired US Navy hull classification)
- (i) San Francisco
- Science fiction
- (s) South Africa (FIPS 10-4 country code)
- (i) Speculative fiction
- Special Forces
- SFE
- (i) Supercritical fluid extraction
- Sydney Futures Exchange
- SFF — (i) Standard File Format
- sf&f — (i) Science fiction & fantasy
- SFOB — (i) Special Forces Operations Base
- SFOR — (p) UN Stabilisation Force (in Bosnia and Herzegovina)
- SFU — (i) Simon Fraser University (Canada)
Read more about this topic: List Of Acronyms And Initialisms: S