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Fog is a visible mass consisting of cloud water droplets or ice crystals suspended in the air at or near the Earth's surface.

Fog or FOG may also refer to:

Poetry and books

• "Fog" (poem), by Carl Sandburg
• Fog, a 1933 novel by Valentine Williams and Dorothy Rice Sims
• The Fog (novel), a 1975 British horror novel by James Herbert

Film and television

• The Fog (1923 film), 1923 American silent drama film directed by Paul Powell
• Fog (1932 film), a French Spanish-language drama
• Fog (1933 film), an American pre-Code film
• The Fog (1980 film), a 1980 American horror film
  • The Fog (soundtrack)
• The Fog (2005 film), an American-Canadian remake of the 1980 horror film
• "The Fog" (Mad Men), a 2009 episode of the American television series

People

• Fog (surname), list of people with the surname

Places

• Fog Bay, Antarctica
• Fog Bay, Northern Territory, Australia
• Fog Bay and Finniss River Floodplains, Australia
• Foggia "Gino Lisa" Airport, Italy
• Forest Gate railway station, England

Science and engineering

• Fats, Oils and Grease (FOG); see Grease trap
• FOG1, friend of GATA1, a protein encoded by the ZFPM1 gene
• Distance fog, a technique in 3D rendering
• Fibre optic gyroscope
• Fog computing
• Gunning fog index, a measure of text readability
• FOG Project

Other uses

• Fear, obligation and guilt, emotional blackmail
• FOG Inc., a Japanese video game developer
• Full On Games, a Japanese video game developer

See also

• All pages with titles containing Fog
• Fogg (disambiguation)
• Fogge (disambiguation)
• Fogging (disambiguation)
• Phog (disambiguation)
• London fog (disambiguation)
• San Francisco fog