Look up onion in Wiktionary, the free dictionary.

Onion is the common name given to plants in the genus Allium.

Onion or Onions may also refer to:

Places

• Onion Creek (Texas)
• Onion River (disambiguation), various rivers in the United States

People

• Ken Onion (born 1963), American knifemaker
• Todd Bodine (b. 1964), NASCAR driver nicknamed "The Onion"
• Onions (surname)

Arts, entertainment, and media

• The Onion, an American digital media company and news satire organization
• Onion, the name of the Pikmin spaceship in Pikmin (series)
• Onion, the name of a character in the animated TV series Steven Universe
• Onion (album), an album by Shannon and the Clams
• Onion, a 2009 album by Mike McClure

Computing and technology

• .onion, a pseudo-top-level domain host suffix
• Onion routing, an anonymous communication technique
• A Toronto-based startup company called Onion manufactures Omega2, a personal single-board computer

Other uses

• Onion (horse), an American thoroughbred racehorse
• False sea onion
• "The Onion", a nickname for the main building of the Sepulveda Unitarian Universalist Society.
• Onion diagram, a kind of chart that shows the dependencies among parts of an organization or process