// Workers AI · dad joke modeWhat did the COO say to the chicken? "You're a coo-perative worker.

COO, coo, or Coo may refer to:

Business

• Chief operating officer, a high-ranking corporate officer of an organization
• Certificate of origin, used in international trade
• Concept of operations, used in Systems Engineering Management Process
• Country of origin, a representative to the country or countries of manufacture, production, design, or brand origin where an article or product comes from

Communication

• "Coo", the call of pigeons and doves
• "Coo", or "cooing", a type of human baby vocalization
• Cell of origin, a mobile-positioning technique for finding a caller's cell

People

• Coo Coo Cal, a stage name of American rapper Calvin Bellamy (born 1970)
• Coo Coo Marlin (1932–2005), a racing driver
• Clara Oswin Oswald, a fictional character

Science

• Carboxylate, a type of anion
• Cobalt(II) oxide, a chemical compound with the formula CoO

Places

• Coo, the Italian name for the Dodecanese island Kos, now in Greece, off the coast of Turkey
• Calgary Olympic Oval, a Canadian ice rink
• Cadjehoun Airport, Cotonou, Benin (IATA code: COO)
• Cookham railway station, Berkshire, England (National Rail code: COO)

Other uses

• Daihatsu Coo, a 2006–2012 Japanese subcompact hatchback
• Tōi Umi kara Kita Coo, a 1998 Japanese novel and anime film
• Summer Days with Coo, a 2007 Japanese animated film
• Coo, a scotticism for a cow
• Comox language (ISO 639-3 code: coo)
• The Cooper Companies, an American medical device company (Nasdaq ticker symbol: COO)
• Coo, an owl-like character in the Kirby series

See also

• All pages with titles beginning with COO
• All pages with titles containing COO