Look up Oreo or oreo in Wiktionary, the free dictionary.

An Oreo is a sandwich cookie produced by Nabisco.

Oreo may also refer to:

Animals

• Oreo (spider), a genus of Australian spiders
• Oreosomatidae, a family of fish commonly called oreos
• Oreo cow, a nickname for the Scottish Belted Galloway

Arts, entertainment, and media

• Oreo (novel), a 1974 novel by Fran Ross
• The Oreo, a sculpture on the Villanova University campus, Pennsylvania

Other uses

• Oreo Cookie (slang), an ethnic slur for a black person who "acts white"
• Oreo O's, a breakfast cereal based on the Oreo cookie
• Oreus (or "Oreos"), an ancient Greek settlement
• Android Oreo, Android Operating System 8.0
• Other Real Estate Owned (OREO), real estate a bank owns that has generally been acquired through foreclosure