COO or coo may refer to:

Business

Certificate of origin A Certificate of Origin or Declaration of Origin (often abbreviated to C/O, CO or DOO) is a document widely used in international trade transactions which attests that the product listed therein has met certain criteria to be considered as origina ...

, used in international trade *

Chief operating officer A chief operating officer or chief operations officer, also called a COO, is one of the highest-ranking executive positions in an organization, composing part of the "C-suite". The COO is usually the second-in-command at the firm, especially if t ...

or chief operations officer, high-ranking corporate official *

Concept of operations A concept of operations (abbreviated CONOPS, CONOPs, or ConOps) is a document describing the characteristics of a proposed system from the viewpoint of an individual who will use that system. Examples include business requirements specificatio ...

, 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

Cell of origin (telecommunications) Cell of origin (COO) is a mobile-positioning technique for finding a caller's cell (the basic geographical coverage unit of a cellular telephone system) location. Overview Crude COO positioning considers the location of the base station to be the ...

* "Coo", the call of pigeons and doves

People

Coo Coo Cal Calvin Bellamy (born July 4, 1970), better known as Coo Coo Cal, is an American rapper and truck driver from Milwaukee, Wisconsin. His single "My Projects" went to #1 on the Billboard Hot Rap Singles chart in 2001. Coo Coo Cal's first album, '' ...

(Calvin Bellamy, born 1970), American rapper * Coo Coo Marlin (1932–2005), racing driver

Science

* Carboxylate, type of anion * Cobalt(II) oxide, chemical with formula of CoO

Places

* ''Coo'', the former Italian name for the Dodecanese island Kos, now in Greece, off the coast of Turkey *

Calgary Olympic Oval The Olympic Oval in Calgary, Alberta, Canada, is North America's first covered speed skating oval; it was built for the 1988 Winter Olympics and opened on September 27, 1987.Cadjehoun Airport in Cotonou, Benin * COO, the National Rail code for

Cookham railway station Cookham railway station serves the village of Cookham, Berkshire, England. Great Western Railway trains between and serve the station on the Marlow branch line, but through services to and from London Paddington in peak hours Monday to Friday ...

in the county of Berkshire, UK

Other uses

Daihatsu Coo , commonly known as Daihatsu, is a Japanese automobile manufacturer and one of the oldest surviving Japanese internal combustion engine manufacturers. The company's headquarters are located in Ikeda, Osaka Prefecture. Historically, Daihatsu was ...

, a 2006–2012 Japanese subcompact hatchback * ''

Summer Days with Coo is a 2007 Japanese animated film about a kappa and its impact on an ordinary suburban family, written for the screen and directed by Keiichi Hara based on two novels by Masao Kogure. Plot Following a dreadful encounter with a samurai, a young k ...

'', a 2007 Japanese animated film *

The Cooper Companies The Cooper Companies, Inc., branded as CooperCompanies, is a global medical device company, publicly traded on the NYSE (NYSE:COO). With its headquarters in San Ramon, California, it has a workforce of more than 12,000 employees worldwide and ...