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 The Sydney Symphony Orchestra (SSO) is an Australian symphony orchestra that was initially formed in 1908. Since its opening in 1973, the Sydney Opera House has been its home concert hall. Simone Young is the orchestra's chief conductor and fir ...

, Australia *

Syracuse Symphony Orchestra The Syracuse Symphony Orchestra (SSO) was a 79-member orchestra located in Syracuse, New York. In its time it was the 43rd largest orchestra in the United States and performed a variety of programs including the Post-Standard Classics Series and ...

, US

Arts and entertainment

*''

Starship Operators A starship, starcraft, or interstellar spacecraft is a theoretical spacecraft designed for interstellar travel, traveling between planetary systems. The term is mostly found in science fiction. Reference to a "star-ship" appears as early as 188 ...

'', a Japanese sci-fi novel and anime television series *''

Super Surgical Operation ''Trauma Center: Under the Knife'' is a Simulation video game, simulation video game developed by Atlus for the Nintendo DS. The debut entry in the ''Trauma Center (video game series), Trauma Center'' series, it was published in Japan and North A ...

'', 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 semi-synchronous orbit is an orbit with a period equal to half the average rotational period of the body being orbited, and in the same direction as that body's rotation. For Earth, a semi-synchronous orbit is considered a medium Earth orbit, wit ...

, a type of orbit *

Single-stage-to-orbit A single-stage-to-orbit (SSTO) vehicle reaches orbit from the surface of a body using only propellants and fluids and without expending tanks, engines, or other major hardware. The term usually, but not exclusively, refers to reusable vehicles ...

, a reusable vehicle that reaches space without jettisoning hardware *

Space Shuttle Orbiter The Space Shuttle orbiter is the spaceplane component of the Space Shuttle, a partially reusable orbital spacecraft system that was part of the discontinued Space Shuttle program. Operated from 1977 to 2011 by NASA, the U.S. space agency, thi ...

, a reusable space vehicle formerly operated by NASA *

Sun-synchronous orbit A Sun-synchronous orbit (SSO), also called a heliosynchronous orbit, is a nearly polar orbit around a planet, in which the satellite passes over any given point of the planet's surface at the same local mean solar time. More technically, it ...

, a type of orbit * Swiss Space Office, national space program of Switzerland

Computing

Single sign-on Single sign-on (SSO) is an authentication scheme that allows a user to log in with a single ID to any of several related, yet independent, software systems. True single sign-on allows the user to log in once and access services without re-enterin ...

, 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 Siding Spring Observatory near Coonabarabran, New South Wales, Australia, part of the Research School of Astronomy & Astrophysics (RSAA) at the Australian National University (ANU), incorporates the Anglo-Australian Telescope along with a co ...

, 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 Source-separated organics (SSO) is the system by which waste generators segregate compostable materials from other waste streams at the source for separate collection. Types of materials Organic materials, such as yard trimmings, food scraps, wo ...

, 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 South Sudan (; din, Paguot Thudän), officially the Republic of South Sudan ( din, Paankɔc Cuëny Thudän), is a landlocked country in East Africa. It is bordered by Ethiopia, Sudan, Central African Republic, Democratic Republic of the ...