Hosta

SAO or Sao may refer to:

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 ICAO airline designator for Sahel Aviation Service, Mali
SAO, the 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 Brazil

Sword Art Online, a Japanese light novel series
- Sword Art Online (2012 TV series), an anime adaptation of the light novels
Sao Sao Sao, a Thai pop music trio

Sao (mythology), 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
SAO (biscuit), an Australian cracker biscuit
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 Príncipe