| Acronym | Definition |
|---|
| SF➣Science Fiction |
| SF➣Square Foot/Feet |
| SF➣Source Forge (web site) |
| SF➣San Francisco (California) |
| SF➣Small Forward (basketball) |
| SF➣Standard Form |
| SF➣South Africa |
| SF➣State Farm (insurance) |
| SF➣Special Forces |
| SF➣Santa Fe (railroad; Argentina province) |
| SF➣Street Fighter (game) |
| SF➣Single-Family Residential (zoning) |
| SF➣Speculative Fiction |
| SF➣Smoke(ing) Fetish |
| SF➣Sugar Free |
| SF➣Six Flags |
| SF➣Sarasota Florida |
| SF➣Strike Force |
| SF➣Security Forces (USAF) |
| SF➣State Fair |
| SF➣SEEDS (Supporting Equanimity on Earth and Diversity in the Sacred) Foundation |
| SF➣Structured Finance |
| SF➣Scatter Factor |
| SF➣Sinn Fein |
| SF➣Soldier Front (gaming) |
| SF➣Sunflower (agriculture) |
| SF➣Sacrifice Fly (baseball) |
| SF➣Seinfeld (TV show) |
| SF➣Significant Figures |
| SF➣Starfire (gaming, World of Warcraft) |
| SF➣Selle Francais (France) |
| SF➣Shadow Fiend (gaming) |
| SF➣Sexually Frustrated |
| SF➣Super Friendly |
| SF➣Symptom Free (illnesses) |
| SF➣Sigmund Freud |
| SF➣Superfund (CERCLA) |
| SF➣Stifel Financial (St. Louis, MO) |
| SF➣Super Frame |
| SF➣Swiss Franc |
| SF➣Saturated Fat |
| SF➣Scale Factor |
| SF➣Socialistisk Folkeparti (Danish political party founded 1959) |
| SF➣Senior Fellow |
| SF➣Spontaneous Fission (radioactive decay) |
| SF➣System Failure |
| SF➣San Fierro (fictional gaming city, GTA: San Andreas) |
| SF➣Server Full |
| SF➣Switchfoot (band) |
| SF➣Safety Factor |
| SF➣Soldier Field (Chicago, Illinois) |
| SF➣Skyfire (Everquest) |
| SF➣Specialty Foods |
| SF➣Special Form |
| SF➣Step-Father |
| SF➣Scarlet Fever |
| SF➣Scuderia Ferrari (Formula 1 racing team) |
| SF➣Soft Focus |
| SF➣Surface Search Radar |
| SF➣Semper Fidelis (US Marine motto; Latin: Always Faithful) |
| SF➣Sticky Fingers (Rolling Stones album) |
| SF➣Single Frequency |
| SF➣Sand Filter |
| SF➣Star Fox (video game) |
| SF➣Synovial Fluid |
| SF➣Status Field (SS7 MTP Layer 2) |
| SF➣Server Farm |
| SF➣Star Field |
| SF➣Senses Fail (band) |
| SF➣Spent Fuel |
| SF➣Syphon Filter (video game) |
| SF➣Sentinel's Fate (gaming; EverQuest) |
| SF➣Star-Fleet |
| SF➣Softball Field |
| SF➣Svensk Film (Swedish Film) |
| SF➣Secret Friends |
| SF➣Spanish Fork |
| SF➣Support Facility |
| SF➣Scleroderma Foundation |
| SF➣Screen Failure (clinical trials) |
| SF➣Sinking Fund (financial) |
| SF➣Structure Fire |
| SF➣Scouting Force (US DoD) |
| SF➣Stock Fund |
| SF➣Sluggy Freelance (webcomic) |
| SF➣Shining Force (game) |
| SF➣Staple Food |
| SF➣Slope Factor |
| SF➣Static Firing (US NASA) |
| SF➣Splicing Factor |
| SF➣Something Fierce (band) |
| SF➣Shooting Forward (basketball) |
| SF➣Spreading Factor |
| SF➣Snoqualmie Falls (Washington) |
| SF➣Suomi Finland (Country) |
| SF➣Supply Fan |
| SF➣Soy Flour |
| SF➣Saga Frontier (videogame) |
| SF➣Shear Force |
| SF➣Sign Flag |
| SF➣South Fremont (Fremont, California) |
| SF➣Shape Factor |
| SF➣Security Function |
| SF➣Sincerely and Fraternally |
| SF➣Sourceforts (gaming) |
| SF➣Service Feature |
| SF➣Sustained Fire |
| SF➣Star Fury (online game) |
| SF➣Signal Frequency |
| SF➣Special Facility |
| SF➣Steel Fiber |
| SF➣Supplemental Feeding |
| SF➣Semifinished |
| SF➣Spayed Female |
| SF➣Stakeholder Forum |
| SF➣Sparks Flew (band) |
| SF➣Space Factor |
| SF➣Space Filler (philately) |
| SF➣Sheepsfoot |
| SF➣Strataframe (Microsoft Visual Studio application framework) |
| SF➣Sliding Filter |
| SF➣Serum Ferritin Concentration |
| SF➣Sherwood Foresters (Infantry Regiment of the British Army) |
| SF➣SONICFLOOd (Christian band) |
| SF➣Sick Freak |
| SF➣Service & Finance |
| SF➣Stowage Factor |
| SF➣Soy Based Formula |
| SF➣Streptomyces Fradiae |
| SF➣Simple Formulation |
| SF➣Stellar Frontier (game) |
| SF➣Supreme Fascist (Paul Erdos) |
| SF➣Scattering Function |
| SF➣Steel - Face |
| SF➣Sketchfu (drawing website) |
| SF➣Sausage Festival (livejournal community) |
| SF➣Slot Flag (computer networking) |
| SF➣Sound & Flash |
| SF➣Special Freighter (aircraft type) |
| SF➣Substitute-Free (game theory) |
| SF➣Sforzando/Sforzato (music) |
| SF➣SightFirst |
| SF➣Suomi Filmi (Finnish Film) |
| SF➣Savings Factor |
| SF➣Specialförbund (Sweden) |
| SF➣Ship Fitter |
| SF➣Synthetic Forces (US government simulation community) |
| SF➣Survivor Function |
| SF➣Shadow's Fall (band) |
| SF➣Sanitary Fair (philately) |
| SF➣Stable au Feu (French: Reaction to Fire) |
| SF➣Source Factor |
| SF➣Serendib Foundation for Music & Performing Arts (California) |
| SF➣Supplementary Firing |
| SF➣Secondary Feeder |
| SF➣Spikelet Fertility |
| SF➣Synchronization Flag |
| SF➣Speed Freeks (band) |
| SF➣Shivan Fighter (gaming) |
| SF➣Sveriges Fotterapeuter (Stockholm, Sweden) |
| SF➣Saikou-Fansubs (IRC network) |
| SF➣Saikou-Fansubs (anime group) |
| SF➣Splashwater Falls (amusement park ride) |
| SF➣Speculative Fiction Canada (aka Science Fiction Canada) |
| SF➣Sons of the Holy Family (religious order) |
| SF➣Surya Foundation (Los Angeles, CA) |
| SF➣Sandford Flemming building (University of Toronto) |
| SF➣Sacramental Fusion (band) |
| SF➣Siyath Foundation |
| SF➣Sarana Foundation (Sri Lanka; est. 1991) |
| SF➣Saman Foundation (Sri Lanka) |
| SF➣Sahana Foundation (Sri Lanka) |