SSO

SSO may refer to:

Organizations

Sarasota County Sheriff's Office, a law enforcement agency in Sarasota County, Florida, U.S.
Social Security Organization, a social welfare organization in Iran
Special Security Office, a function to disseminate sensitive information in the U.S. federal government and armed forces
Special Security Organization, a former Iraqi security agency
Special Source Operations, a division of the U.S. National Security Agency that collects digital data
Standards Setting Organization, a group developing, producing or maintaining technical standards
SSO VS, Russian Special Operations Forces (Sily Spetsialnykh Operatsiy)

Starship Operators, a Japanese sci-fi novel and anime television series
Super Surgical Operation, a Japanese video game also known as Trauma Center: Under the Knife

Scaled Composites SpaceShipOne, the vehicle used in the first privately funded human spaceflight
Semi-synchronous orbit, a type of orbit
Single-stage-to-orbit, a reusable vehicle that reaches space without jettisoning hardware
Space Shuttle Orbiter, an reusable space vehicle operated by NASA
Sun-synchronous orbit, a type of orbit
Swiss Space Office, national space program of Switzerland

Single sign-on, allowing access to multiple software systems using one login
Structure, sequence and organization, a legal term, in the USA, relating to computer programs and copyright

Sanitary sewer overflow, when untreated sewage is discharged into the environment
Senior station officer (New Zealand Fire Service), a rank in the New Zealand Fire Service
Student Switch Off, a UK-based energy saving campaign
Sydney Star Observer, an LGBT newspaper in Sydney, Australia