SA may stand for:
- Sturmabteilung (SA, Storm Troopers as in Nazi Germany)
- Salvation Army
- San Antonio
- Saudi Arabia (ISO 3166-1 alpha-2 country code)
- Seaman Apprentice
- Second Age of J. R. R. Tolkien's Middle-earth (usually written S.A.)
- Security Association in the IPsec networking protocol
- selective availability, the mechanism for deliberately degrading the precision of the civilian GPS network
- Sexaholics Anonymous, a 12-step program
- social anxiety (also known as "social phobia" or "social anxiety disorder")
- Socialist Alliance
- Sociedad Anónima (Spanish), see S.A. (corporation)
- Société Anonyme (French), see S.A. (corporation)
- Something Awful, comedy/satire website
- Sonata Arctica, a Finnish power metal band.
- South Africa
- South America
- South Australia
- structured analysis (software engineering)
- surface-to-air missile
- system administrator (computer industry)
- Software Assurance
- the IATA code for South African Airways
- Sonic Adventure, a hi-speed 3d platform game.
See also: Sa.
This disambiguation page lists articles associated with the title SA.
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