Fos

FOS or Fos may refer to:

Arts and entertainment

• Fos (EP), by Elena Paparizou
• Fortress of Solitude, fictional base of Superman

Food

• French onion soup, a dish
• Fructooligosaccharide, a sweetener

Government, law and military

• Financial Ombudsman Service, in the United Kingdom
• Financial Ombudsman Service (Australia)
• Forward Operating Site, in the U.S. military
• Freedom of speech, a human right
• Future Office System, Scottish prosecutors' case system

People

• Fos Williams (1922–2001), Australian-rules footballer
• Peter J. Fos (born 1949), American academic administrator

Places

• Fos, Haute-Garonne, France
• Fos, Hérault, France
• Fos-sur-Mer, Bouches-du-Rhône, France
• Marseille-Fos Port, France
• Forrest Airport, Western Australian refuelling airfield, IATA code FOS
• French Overseas Territories, UNDP country code, see Overseas territory (France)

Science and technology

• Fabric OS, in networking
• Factor of safety, in engineering
• Feature-oriented scanning, in microscopy
• Faint Object Spectrograph, on the Hubble Space Telescope
• Fields of Science and Technology, a classification for academic statistics
• Flowers of sulfur
• Flowers of sulfur tests

Molecular biology

FOS-family transcription factors:

• c-Fos, a proto-oncogene
• FosB, a proto-oncogene
• ΔFosB, a truncated splice variant of FosB
• FOSL1, Fos-related antigen 1
• FOSL2, Fos-related antigen 2

Other uses

• Florida Ornithological Society, United States
• FOS Open Scouting, a Belgian youth organisation
• Goodwood Festival of Speed, an English hill-climbing event