Places
* Sao civilisation, in Middle Africa from 6th century BC to 16th century AD * Sao, a town in Boussé Department, Burkina Faso * Saco Transportation Center (station code SAO), a train station in Saco, Maine, U.S. * SAO, the List of airline codes (S), ICAO airline designator for Sahel Aviation Service, Mali * SAO, the IATA airport code#History and conventions, IATA airport code for airports in the São Paulo metropolitan area, Brazil * Serb Autonomous Regions during the breakup of Yugoslavia * São Paulo, the largest city in BrazilScience
* Smithsonian Astrophysical Observatory of the Smithsonian Institution in Cambridge, Massachusetts, U.S. ** Smithsonian Astrophysical Observatory Star Catalog, which assigns SAO catalogue entries * Special Astrophysical Observatory of the Russian Academy of Science (SAO RAS)Entertainment
* ''Sword Art Online'', a Japanese light novel series ** Sword Art Online (2012 TV series), ''Sword Art Online'' (2012 TV series), an anime adaptation of the light novels * Sao Sao Sao, a Thai pop music trioOther uses
* Sao, a nereid (sea nymph) in Greek mythology * Sáo, a Vietnamese flute * Sao (moon), a satellite of Neptune * Sao, or Thao language, of the Thao people in central Taiwan * São, the Portuguese word for saint * Sao (စဝ်), an honorific used in Burmese names * Chad national football team, nicknamed Sao * Ligi Sao (born 1992), a New Zealand rugby league footballer * Session-At-Once, a recording mode for optical discs * Security Advisory Opinion, a U.S. visa decision-making process * Specified Associated Organisation, an organization of members of the British Liberal Democrats * São Tomé and PríncipeSee also
* * * Sau (disambiguation) {{disambiguation