# Sai

Sai or SAI may refer to:

## Companies

* Science Applications Incorporated, original name of Leidos
* ICAO designator for Shaheen Air, a Pakistani airline
* Skandinavisk Aero Industri, a former Danish aeroplane manufacturer
* Software Architects, Inc., a North American computer software company
* Springfield Armory, Inc., an American firearm manufacturer and importer
* Stability AI, an artificial intelligence company, best known for its text-to-image model Stable Diffusion.
* Supersonic Aerospace International, an American aerospace firm

## Fiction

* Fujiwara no Sai, a character in Hikaru no Go media
* Sai (Naruto), a character in Naruto media
* Hinoki Sai, a character in the Betterman universe
* Sai Akuto, protagonist of Ichiban Ushiro no Dai Maō
* Sai Argyle, a fictional character in the manga and anime Gundam series
* Sai, a term of respect in Stephen King's The Dark Tower universe
* Sai no Hanaya (the Florist of Sai), a character in the Yakuza series

## Government

* Solar America Initiative
* Sports Authority of India, an Indian government body
* Supreme audit institution, a government audit body

## Media

* Sai music, a traditional style of music from southern Chad
* Scaled and Icy (2021), sixth studio album by the American musical duo, Twenty One Pilots

## Military

* Senior Army Instructor, in United States Army Junior ROTC
* South African Infantry Corps
* Sai (weapon), an Asian melee weapon

## Places

* Sai, Orne, a French village and commune
* Sai, Bhiwani, Haryana, India
* Sai (Mawal), a village in Pune district, Maharashtra, India
* Sai, Raebareli, a village in Uttar Pradesh, India
* Sai, Aomori, a village in Japan
* Lake Sai, one of the Fuji Five Lakes in Japan
* Saï (island), on the Nile in Sudan
* Sai River (disambiguation)

## Organisations

* SAI Global, Australian standards organisation
* Sathya Sai Organization, religious organization
* Scout Association of Ireland, 1908–2004
* SAI Ambrosini, an Italian aircraft manufacturer
* Society of American Indians, 1911–1923
* Society of Architectural Illustrators
* Sweet Adelines International, women barbershop singers

## People
### Groups

* Sai people or Li people, a minority Chinese ethnic group
* Sai (caste)

### Given name

* Sai Kiran Adivi, Indian film director and producer
* Sai Prathap Annayyagari (born 1944), Indian politician
* Sai Bennett (born 1990), British actress and model
* Sai Deodhar (born 1984), Indian television actor
* Sai Mauk Kham (born 1950), ethnic Shan politician and one of the two vice presidents of Myanmar
* Sai Kiran (born 1978), Indian actor who works in the Telugu film industry
* Sai Wing Mock (1879–1941), New York Chinese criminal and leader of the Hip Sing Tong
* Sai Pallavi (born 1992), Indian actress
* Sai Paranjpye (born 1938), Indian movie director and screenwriter
* Sai Sam Tun, owner of the Loi Hein Co, Ltd. of Myanmar
* Sai Yinjiya (born 1976), male Chinese freestyle wrestler

### Surname

* Anand Sai, Indian art director who works for Telugu films
* Manoj Sai, Indian cricketer
* Marlene Sai (born 1941), Hawaiian singer
* Nand Kumar Sai (born 1946), Indian politician from Chhattisgarh state
* Obodai Sai (born 1984), Ghanaian boxer
* Sai On (1682–1761), scholar-official of the Ryūkyū Kingdom
* Ryouji Sai (born 1980), Japanese professional wrestler
* Tiaoalii Fauagiga Sai, American Samoan politician
* Veer Surendra Sai (died 1884), Indian freedom fighter
* Vishnudeo Sai (born 1964), Chief Minister of Indian state of Chhattisgarh
* Yōichi Sai (born 1949), Japanese film director

### Other people

* Sai, real name Simon Wimmerberg, DJ/producer with the band Labyrint
* Sai Htee Saing (1950–2008), Burmese singer and songwriter of Shan descent
* Sai Maa (born 1953), Mauritian guru

## Research institutes

* University of Texas at Austin South Asia Institute, USA
* South Asia Institute (Germany)
* Stan Ackermans Institute, in the Dutch city of Eindhoven
* Sternberg Astronomical Institute, a division of Moscow State University in Russia

## Science and technology

* SAI (software), painting software
* Serving area interface, or service area interface, an outdoor telecommunications cabinet
* Silent Aircraft Initiative, Cambridge-MIT Institute project
* Single-collateral Dai (cryptocurrency), discontinued
* Stratospheric aerosol injection in climate engineering
* Subject–auxiliary inversion in linguistics

## Other uses

* Sai (deity), an Egyptian god
* Steering Axis Inclination, a secondary wheel alignment measurement
* Toyota Sai, alternate name for the Lexus HS hybrid car
* Self-assessed intelligence