'''FSS''' may refer to: {{TOC right}} == 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: ''{{lang|kw|Furv Skrifys Savonek}}''), a Cornish orthographic standard * Swiss Socialist Federation (French: ''{{lang|fr|Fédération socialiste suisse}}''), a defunct political party in Switzerland
== See also == * FS (disambiguation)
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