| Acronym | Definition |
|---|
| FSS➣Forensic Science Service (Great Britain) |
| FSS➣Five Star Stories (manga series) |
| FSS➣Financial Supervisory Service (South Korea) |
| FSS➣Fudbalski Savez Srbije (Serbian: Football Association of Serbia) |
| FSS➣Federal Supply Schedule |
| FSS➣Federal Supply Service (US General Services Administration) |
| FSS➣Fakulta Socialnich Studii (Czech: Faculty of Social Studies) |
| FSS➣Frequency Selective Surface |
| FSS➣Forensic Science Society |
| FSS➣Flight Service Station |
| FSS➣Family Self-Sufficiency |
| FSS➣Fixed Satellite Service |
| FSS➣Fire Suppression System |
| FSS➣Foundation for Shamanic Studies (Mill Valley, CA) |
| FSS➣Field Support Services |
| FSS➣Food Service Solutions (Altoona, PA) |
| FSS➣Fire Safety System |
| FSS➣Friday, Saturday, Sunday (movie weekend box office receipts) |
| FSS➣Financial System Stability |
| FSS➣Financial Shared Services |
| FSS➣Federal Specifications and Standards |
| FSS➣Family Social Support |
| FSS➣Foundation Stock Service |
| FSS➣Federal Security Service |
| FSS➣Financial Services Specialist |
| FSS➣Food Service Supervisor (various organizations) |
| FSS➣Floral Supply Syndicate (various locations) |
| FSS➣Faculté des Sciences Sociales (French: School of Social Sciences; Canada) |
| FSS➣Faculté des Sciences du Sport (French: School of Sport Sciences) |
| FSS➣File System Safe |
| FSS➣File System Server |
| FSS➣Fair Share Scheduler |
| FSS➣Fail Safe System |
| FSS➣Full Service System |
| FSS➣Freestyle Shaper |
| FSS➣Fast System Switch |
| FSS➣Fail Safe State |
| FSS➣Freeman-Sheldon Syndrome |
| FSS➣Fire Support System |
| FSS➣Fédération Suisse des Sourds (French: Swiss Federation of the Deaf; Switzerland) |
| FSS➣Flats Sequencing System (USPS) |
| FSS➣Flight Service Specialist (US FAA) |
| FSS➣Flow State Scale |
| FSS➣Fall Symposium Series (Association for the Advancement of Artificial Intelligence) |
| FSS➣Flinders Street Station ( Melbourne, Australia) |
| FSS➣Friends Select School (Philadelphia, PA) |
| FSS➣Fugitive Safe Surrender (various locations) |
| FSS➣Flight Support System |
| FSS➣Facility Support Services (various locations) |
| FSS➣Force Sustainment Systems |
| FSS➣Fixed Sample Size |
| FSS➣Frequency Selected Scheduling (wireless technology) |
| FSS➣File Sharing Services |
| FSS➣Florida State Statutes (laws) |
| FSS➣Flextronics Software Systems (India) |
| FSS➣Flight Safety System |
| FSS➣Formations Sanitaires et Sociales (French: Health and Social Facilities) |
| FSS➣Fast Sealift Ship |
| FSS➣Fellow of the Royal Statistical Society (UK; also seen as FRSS; aka Fellow of the Statistical Society) |
| FSS➣Food Safety Summit (exhibition) |
| FSS➣First Stop Shop |
| FSS➣Fellow of the Statistical Society |
| FSS➣Field Sales Support |
| FSS➣Forum for Social Studies (Ethiopian aid) |
| FSS➣Fire Support Station |
| FSS➣Fédération Sportive de Speed Badminton (French badminton federation) |
| FSS➣Fire Support Section |
| FSS➣Full Service Supplier |
| FSS➣Fail-Safe State |
| FSS➣Force Support Squadron |
| FSS➣Fonds des Services de Santé (French: Contribution to the health services fund; Québec, Canada) |
| FSS➣Faculty Salary Survey |
| FSS➣Fine Sun Sensor |
| FSS➣Fresh Static Snow (Porter Robinson song) |
| FSS➣Functional Somatic Syndrome (disease group) |
| FSS➣Field Service Specialist |
| FSS➣Free Standing Stand (various companies) |
| FSS➣Financial Service Standards LLC |
| FSS➣Faith Stepping Stones (ministry) |
| FSS➣Fast System Switch (Unix) |
| FSS➣Fin Stabilizer System |
| FSS➣Fluent Spanish Speaker |
| FSS➣Feature Sign Search (computing algorithm) |
| FSS➣Field Service Site |
| FSS➣Financial Settlement Services |
| FSS➣Flight Support Structure |
| FSS➣Fuel Supply System |
| FSS➣Fanguard Security Services (UK) |
| FSS➣Fonds Spécial de Solidarité (French: Belgium insurance) |
| FSS➣Family Stabilization Service (various locations) |
| FSS➣Florida Street Scene (forum) |
| FSS➣Fixed Service System |
| FSS➣Familial Short Stature |
| FSS➣Federal Supply Schedule/Service |
| FSS➣Frontenac Secondary School (Ontario, Canada) |
| FSS➣Field Sanitation Standard (US OSHA) |
| FSS➣Faculty Self-Service (various universities) |
| FSS➣France Sécurité Surveillance (French security company) |
| FSS➣Foreign Shore Service (US Navy) |
| FSS➣Frequency-Selective Structure |
| FSS➣Facility Status Sheet |
| FSS➣Fokker Space Systems |
| FSS➣Feng Shui Society (UK) |
| FSS➣Family Support Services of North Florida, Inc. |
| FSS➣Food Service Sergeant |
| FSS➣Facilities Security and Safeguards Division |
| FSS➣Full-Scale Simulator |
| FSS➣Forward Supply Support |
| FSS➣Fuel Supply Shutdown |
| FSS➣Frequency Surveillance System |
| FSS➣Flutter Suppression System |
| FSS➣Fully Separate Subsidiary |
| FSS➣Flight Software Subsystem |
| FSS➣Functional Simulation System |
| FSS➣Facility Service Selective |
| FSS➣Fade-Slope Statistic(s) |
| FSS➣Fire Support Status |
| FSS➣Fyshwick Self Storage (Australia) |
| FSS➣Flexibles Service System |
| FSS➣Fault Status Symbol |
| FSS➣Failed Signal State |
| FSS➣Forward Scatter System |
| FSS➣Flight Security Supervisor |
| FSS➣Fast Slot Synchronization |
| FSS➣Forward Support Site |
| FSS➣Forward Scatter Site |
| FSS➣Fixed Site SCAMP |
| FSS➣Fire Survey System (insurance) |
| FSS➣Facility Support Subsystem |
| FSS➣Frequent State Saving |
| FSS➣Fiber Sequence Selection |
| FSS➣Firefinder Survivability Suite |
| FSS➣Full Supply Support |
| FSS➣File Survey System |