Sao
Sao stands for:
- Sao culture , an ancient culture in the Lake Chad area
- Sao (unit) , Vietnamese measure of length
- Sao (Nereid) , one of the Nereids
- Sao (moon) , a moon of Neptune
SAO is an abbreviation for:
- the airports in the metropolitan area of São Paulo according to the IATA airport code
- Self-adjoint operator in mathematics
- Session-At-Once , a burning mode for CDs and DVDs
- Smithsonian Astrophysical Observatory in Cambridge, Massachusetts
- Srpska Autonomna Oblast , an autonomous Serbian territory in Croatia, Bosnia and Herzegovina (1990–1992)
- Black Eagle Order , the highest Prussian order
- Sword Art Online , Japanese light novel and anime series
sao stands for:
- Sause (ISO-639-3 code), Papuan language of the Orya branch of the Orya Tor languages in Indonesia
