Look up foo in Wiktionary, the free dictionary.

Foo is a placeholder name in computer-related documentation.

Foo or FOO may also refer to:

People

• Adeline Foo, Singaporean writer
• Cedric Foo (born 1960), Singaporean politician
• Ching Ling Foo (1854–1922), Chinese magician
• Foo Choo Choon (1860-1921), Malaysian businessman
• Ernie Foo (1891–1934), Australian rules footballer
• Jon Foo (born 1982), English actor, martial artist and stuntman
• Jonathan Foo (born 1990), Guyanese cricketer
• Mark Foo (1958–1994), American surfer
• Ruby Foo (1904-1950), restaurateur
• Sharin Foo (born 1973), Danish musician
• Stephanie Foo (born 1987), American radio producer

Places

• Foo Lake, in Wisconsin, United States
• Foo Pass, in Switzerland

Other uses

• Foo (game), a dice game
• Foo?, an album by the band Porno Graffiti
• Foobar, a placeholder name in computing
• Foo Camp, a hacker event
• Foo gas or fougasse, a type of explosive mine
• Forward observation officer
• A nonsense word used in the Smokey Stover comic strip
• Foo fighter, mysterious aerial phenomena seen during World War II
• Foo Fighters, an American rock band
• Foo was here, an Australian graffiti signature of popular culture