FS

FS, fS or fs may refer to:

Computing & technology

File Separator, a character in the C0 and C1 control codes
File server, a form of disk storage
File system, in computer science and database theory
Formula Student, a student engineering competition held annually in the UK
Forward secrecy, a property of cryptographic systems
FS register, in X86fs computer architecture
Fullscreen, the picture format as opposed to widescreen
Future System a failed IBM project to develop a computer line to replace System/360

Femtosecond, an SI unit of time
Femtosiemen, an SI unit of electric conductance
Fine structure, in atomic physics
Flank speed, a ship's true maximum speed
Fujita scale (F-Scale), or Fujita-Pearson scale, a scale for rating tornado intensity
Full scale, the maximum amplitude a system can present

Fibrin sealant, a type of surgical tissue adhesive used during surgery to control bleeding
Flight Surgeon, a physician who is responsible for the medical evaluation, certification and treatment of aviation personnel
Fractional shortening of the heart

Fin-stabilized projectiles, such as APFSDS or HEAT-FS (ammunition for tank guns)
Fire Support, a military term
Flight Sergeant, a non-commissioned officer in some air forces
Flight Simulator, a simulator that tries to replicate the experience of flying for military personnel
Flight Surgeon, physicians who are primarily responsible for the medical evaluation, certification and treatment of aviation personnel
Food service specialist, a rating in the United States Coast Guard
French Ship, a NATO prefix for ships of the French Navy

Federal Standard 595, a United States Federal standard used to define color shades
Financial Secretary (Hong Kong)
Financial Statements
Flipnote Studio, a DSi software to make animations
For Sale (disambiguation), various meanings
Frameshift mutation, a genetic mutation
Franco's Spain, Francisco Franco's leadership of Spain
Frankfurt School, a neo-Marxist school of social theory
Frankfurt School of Finance & Management, a Business School in Frankfurt, Germany
French Southern Territories: FIPS PUB 10-4 territory code (excluding the Terre Adélie portion of Antarctica)
FS (musician), a musician
FS Catalogue, a numbered list of all compositions by Carl Nielsen compiled by Dan Fog and Torben Schousboe (1965)
FS Film, a Finnish film distributor
Full Sail Real World Education, a university in Florida dedicated to real world education in the entertainment industry
Future Shop, Canada's largest online and brick and mortar consumer electronics retailer
Growmark, an agricultural supply cooperative that is frequently called "FS" locally