COO
Appearance
COO may refer to:
- Concept of Operations, used in Systems Engineering Management Process
- Country of origin
- Certificate of origin, used in international trade
- Chief operating officer or chief operations officer, high-ranking corporate official
- Cell of origin (telecommunications)
- Carboxylate, type of anion
- Cobalt(II) oxide, chemical with formula of CoO
- Cadjehoun Airport (IATA Code: COO), in Cotonou, Benin
- Calgary Olympic Oval, Canadian ice rink
- coo, the call of pigeons and doves
- Summer Days with Coo, a 2007 Japanese animated film
- Coo Coo Cal
- Coo Coo Marlin (1932–2005)
- Charles Owen O'Conor (1838–1906)
- C. Odumegwu Ojukwu (1933–2011)
- Christopher Odhiambo Okinda (born 1980)
- Christianah Oluwatoyin Oluwasesin (1977–2007)
- Cyprian Ojwang Omollo
- Chief Olu Oyesanya (born 1923)