{{wikt|Cao|CAO}} '''Cao''' or '''CAO''' may refer to: {{TOC right}} ==Companies or organizations== *Air China Cargo, ICAO airline designator CAO *CA Oradea, Romanian football club *CA Osasuna, Spanish football club *Canadian Association of Optometrists *Canadian Association of Orthodontists *Central Allocation Office, cross border electricity transmission capacity auction office *Central Applications Office, Irish organisation that oversees college applications *Civil Aviation Office of Poland *Iran Civil Aviation Organization *Office of the Chief Administrative Officer of the United States House of Representatives *Compliance Advisor/Ombudsman, accountability arm of the World Bank *Council for Adult Education, later Centre for Adult Education, in Victoria, Australia *Commission on Audit
==Job titles== *Chief Academic Officer of a University, often titled the Provost *Chief accounting officer of a company *Chief administrative officer of a company *Chief analytics officer of a company *Compliance Advisor/Ombudsman, an independent office that reviews complaints
==Names== *Cao (Chinese surname) (曹) *Cao (Vietnamese surname)
==People== *Cao (footballer, born 1968), Portuguese footballer *Cao Cao (died 220), founder of Cao Wei, China *Cao Hamburger (born 1962), Brazilian director, screenwriter and producer *Cao Pi (c.187–226), emperor of Cao Wei, China *Cao Yu (1910–1996), Chinese playwright *Cao Yupeng (born 1990), Chinese snooker player *Carlos Alberto Caó (1941–2018), Brazilian activist, lawyer, and politician *Diogo Cão, a 15th-century Portuguese explorer *Joseph Cao (born 1967), United States politician *Lady of Cao, a Moche mummy, Peru *Longbing Cao (born 1969), data scientist *Pierre Cao (1937–2026), Luxembourgish composer and conductor
==Places== *Cao (state), a Chinese vassal state of the Zhou Dynasty (1046 - 221 BCE) *Cao County, Shandong, China *Cao Wei, also called Wei, one of the regimes that competed for control of China during the Three Kingdoms period (220 - 280 CE) *Magdalena de Cao, a town on the north coast of Peru, surrounded by major archaeological sites, c. 50km north of the city of Trujillo
==Other uses== *Cao (bull), a legendary bull in Meitei mythology *CaO, the chemical symbol for calcium oxide *''Cão!'', an album by Portuguese band Ornatos Violeta *CA Osasuna, a Spanish sport club *a Child Arrangement Order under English family law *Chlorophyllide-a oxygenase, an enzyme *Cold air outbreak, an intense and/or prolonged cold weather wave of air *Controller Access Object, as described in the ORiN robot interface
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