FSS may refer to:
Education Faculty of Social Sciences, Charles University in Prague in the Czech Republic Fernie Secondary School, in British Columbia, Canada Friends Select School, in Philadelphia, Pennsylvania, United States Frontenac Secondary School, in Kingston, Ontario, Canada
Government Federal Security Service, a principal security agency of Russia Federal statistical system, a decentralized network of federal agencies in the United States Federal Supply Service, part of the General Services Administration of the United States Financial Supervisory Service, South Korean supervisory agency on financial regulation Food Standards Scotland, a non-ministerial government department of the government of Scotland Forensic and Scientific Services, an agency of the state government of Queensland, Australia Forensic Science Service, a defunct British crown corporation Foreign Service specialist, Department of State
Military Fast Sealift Ship of the United States Navy Fire Support Specialist, an artillery observer in the United States Army RAF Kinloss, a former Royal Air Force station in Scotland
Sport Florida State Seminoles, the sports teams of Florida State University Football Association of Serbia FS Seoul, a South Korean futsal club
Technology Fish School Search Fixed-satellite service Fixed Service Structure, a launch tower leased by SpaceX at Kennedy Space Center, Florida, United States Flats Sequencing System, a mail sorting system used by the United States Postal Service Flight service station Flying-spot scanner Food Service Solutions, an American software company Frequency selective surface
Other uses FSS (brand), a Colombian sports apparel manufacturer Federal Signal Corporation, an American emergency services equipment manufacturer Fellow of the Royal Statistical Society Finland-Swedish Sign Language The Five Star Stories, a manga series by Mamoru Nagano Flinders Street railway station in Melbourne, Australia Foundation Stock Service Program, a dog breed registry Fox Sports South, an American regional sports network by Fox Sports Networks Functional somatic syndrome, a disorder Freeman–Sheldon syndrome FSS Code, an international maritime fire code Standard Written Form (Cornish: ), a Cornish orthographic standard Swiss Socialist Federation (French: ), a defunct political party in Switzerland
See also FS (disambiguation)