SSO may refer to:

Organizations

Sarasota County Sheriff's Office Sarasota County Sheriff's Office (SSO) is the primary law enforcement agency for Sarasota County, Florida. The agency is responsible for law enforcement services in unincorporated areas of Sarasota County, jail facilities, and courthouse secur ...

, a law enforcement agency in Sarasota County, Florida, US *

Social Security Organization The Social Security Organization (SSO) is a social insurance organization in Iran which provides coverage of wage-earners and salaried workers as well as voluntary coverage of self-employed persons. In 1975, the laws Social Security Law was app ...

, a social welfare organization in Iran * Special Security Office, a function to disseminate sensitive information in the US federal government and armed forces * Special Security Organization, a former Iraqi security agency *

Special Source Operations Special Source Operations (SSO) is a division in the US National Security Agency (NSA) which is responsible for all programs aimed at collecting data from major fiber-optic cables and switches, both inside the US and abroad, and also through corpor ...

, a division of the US National Security Agency that collects digital data * Standards Setting Organization, a group developing, producing or maintaining technical standards * SSO VS,

Russian Special Operations Forces The Special Operations Forces of the Armed Forces of the Russian Federation, commonly known as the Special Operations Forces (SOF; rus, Силы специальных операций; ССО, Sily spetsial’nykh operatsiy; SSO) are strategic-l ...

(''Sily Spetsialnykh Operatsiy'') * SSO, Ukrainian Special Operations Forces (''Syly Sspetsialʹnykh Operatsiy)'' * SSO, Belarusian Special Operations Forces

Orchestras

* Salford Symphony Orchestra, England *

Saskatoon Symphony Orchestra The Saskatoon Symphony Orchestra (SSO) is a professional orchestra based in Saskatoon, Saskatchewan administered by the non-profit Saskatoon Symphony Society. The orchestra was founded in 1927 as an amateur orchestra, but today has 10 core member ...

, Canada * Scottish Symphony Orchestra, Scotland *

Seattle Symphony Orchestra The Seattle Symphony is an American orchestra based in Seattle, Washington. Since 1998, the orchestra is resident at Benaroya Hall. The orchestra also serves as the accompanying orchestra for the Seattle Opera. History Beginnings The orchestra ...

, US * Shreveport Symphony Orchestra, US *

Singapore Symphony Orchestra The Singapore Symphony Orchestra (SSO) is a symphony orchestra based in Singapore. Its principal concert venue is the Esplanade – Theatres on the Bay. The orchestra also gives concerts at the Victoria Theatre and Concert Hall, and performs about ...

, Singapore *

Southern Syncopated Orchestra Southern Syncopated Orchestra (SSO), established first in the U.S. as the New York Syncopated Orchestra, was an early jazz group known for bringing Black musicians to the UK. The group was founded by Will Marion Cook. Members of the group include ...

, an early US jazz group that toured the UK and Ireland 1919–21 *

Springfield Symphony Orchestra The Springfield Symphony Orchestra is an American orchestra based in Springfield, Massachusetts. It performs at Symphony Hall, a part of the Springfield Municipal Group. The Springfield Symphony (SSO) got its start when the conductor of the ...

, US * Stavanger Symphony Orchestra, Norway *

Sudbury Symphony Orchestra The Sudbury Symphony Orchestra is a Canadian symphony orchestra based Sudbury, Ontario Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has histor ...

, Canada *Sydney Symphony Orchestra, Australia *Syracuse Symphony Orchestra, US

Arts and entertainment

*''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''

Science and technology

Spaceflight

*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, a reusable space vehicle formerly operated by NASA *Sun-synchronous orbit, a type of orbit *Swiss Space Office, national space program of Switzerland

Computing

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

Electronics

*Simultaneous switching output, also known as simultaneous switching noise (SSN), or ground bounce

Astronomy

*Siding Spring Observatory, an astronomical observatory in Australia * Solar System Object

Other uses

*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 *Source-separated organics, a system for separating compostable materials from other waste streams *Student Switch Off, a UK-based energy saving campaign *''Sydney Star Observer'', an LGBT newspaper in Sydney, Australia *South Sudan Oyee!, the national anthem of South Sudan.