SCO or sco may refer to:

Businesses and organizations

Santa Cruz Operation The Santa Cruz Operation, Inc. (usually known as SCO, pronounced either as individual letters or as a word) was an American software company, based in Santa Cruz, California, that was best known for selling three Unix operating system variants ...

, a company founded in 1979 that existed under that name until 2001 *

SCO Group The SCO Group (often referred to SCO and later called The TSG Group) was an American software company in existence from 2002 to 2012 that became known for owning Unix operating system assets that had belonged to the Santa Cruz Operation (the or ...

, a software company formerly called Caldera International and Caldera Systems **

SCO OpenServer Xinuos OpenServer, previously SCO UNIX and SCO Open Desktop (SCO ODT), is a closed source computer operating system developed by Santa Cruz Operation (SCO), later acquired by SCO Group, and now owned by Xinuos. Early versions of OpenServer were ...

(formerly SCO Unix), an operating system made by the above companies *

Shanghai Cooperation Organisation The Shanghai Cooperation Organisation (SCO) is a Eurasian politics, political, economy, economic, international security and Defence (military), defence organization of ten member states. It was established in 2001 by the China, People's Republic ...

, a Eurasian inter-governmental political, economic, and security organization *

Society of Canadian Ornithologists The Society of Canadian Ornithologists, or , is an ornithological non-profit organization serving Canada’s ornithological community. It was founded in 1983, and is a member of the Ornithological Council. The goals of the Society are to encour ...

Southern College of Optometry The Southern College of Optometry is a privately owned educational institution located in Memphis, Tennessee. It specializes in optometry and offers a comprehensive program in this field. History The Southern College of Optometry (SCO) is a pr ...

in Memphis, Tennessee *

Special Communications Organization The Special Communications Organization (SCO) is a Pakistani public sector organization operated by MoIT&T. SCO plays a role in providing telecommunication services in Azad Kashmir and Gilgit Baltistan to almost 1.8 million people, a quarter of ...

, a Pakistani telecommunication company * The ICAO airline code for

Scoot Scoot Pte Ltd, operating as Scoot, is a low-cost airline based in Singapore and a subsidiary of the country's flag carrier Singapore Airlines. It began its operations on 4 June 2012 on medium and long-haul routes from Singapore, predominantly t ...

Orchestras

Scottish Chamber Orchestra The Scottish Chamber Orchestra (SCO) is an Edinburgh-based UK chamber orchestra. One of Scotland's five National Performing Arts Companies, the SCO performs throughout Scotland, including annual tours of the Scottish Highlands and Islands and So ...

Singapore Chinese Orchestra Singapore Chinese Orchestra SCO ( zh, c=新加坡华乐团, p=Xinjiapo Huayuetuan) is Singapore's only professional Chinese orchestra. Inaugurated in 1997, the 85-musician orchestra took on the twin role of preserving traditional arts and cultu ...

Swedish Chamber Orchestra The Swedish Chamber Orchestra () is a Swedish orchestra based in Örebro. Established under its current name in 1995, its primary concert venue is the Örebro Concert Hall. The historical precursor ensembles to the orchestra included the ''Harmoni ...

Science and technology

Scorpius Scorpius is a zodiac constellation located in the Southern celestial hemisphere, where it sits near the center of the Milky Way, between Libra to the west and Sagittarius to the east. Scorpius is an ancient constellation whose recognition pred ...

, abbreviation for the constellation *

Self-checkout Self-checkouts (SCOs), also known as assisted checkouts (ACOs) or self-service checkouts, are machines that allow customers to complete their own transaction with a retailer without using a staffed checkout. When using SCOs, customers scan item ...

machines, automated alternatives to traditional cashier-staffed checkout at retailers * Single cell oil, a type of oil produced by a microbe * Synchronous Connection Oriented protocol, used for audio devices in the Bluetooth protocol stack *

Synthetic crude Synthetic crude is the output from a bitumen/extra heavy oil upgrader facility used in connection with oil sand production. It may also refer to shale oil, an output from an oil shale pyrolysis. The properties of the synthetic crude depend on the ...

oil, a type of crude oil

Other uses

* .sco, a formerly

proposed top-level domain The Domain Name System of the Internet consists of a set of top-level domains that constitute the root domain of the hierarchical name space and database. In the growth of the Internet, it became desirable to expand the initial set of six generic ...

for Scotland *

Aktau Airport Aktau International Airport (), formerly Shevchenko-Central, is an international airport in Mangystau Region, Kazakhstan. It is the primary international airport serving the city of Aktau on the Caspian Sea. The airport is the eighth-busiest in ...

in Kazakhstan (IATA code SCO) *

Angers SCO Angers Sporting Club de l'Ouest, commonly referred to as Angers SCO (), is a French professional football club based in Angers in Pays de la Loire in western France. The club was founded in 1919 and plays in Ligue 1, the first division of Foot ...

, a French football club * Scots language (ISO 639-2 & -3 alpha-3 code: sco) *

Selected Characteristics of Occupations The Selected Characteristics of Occupations (SCO) is a companion volume to the U.S. Department of Labor's Dictionary of Occupational Titles, Revised Fourth Edition, published in 1991. These volumes were intended to provide a detailed representatio ...

, a companion volume to the U.S. Department of Labor's Dictionary of Occupational Titles *

Single Cell Orchestra Single Cell Orchestra is the performing name of Miguel Angelo Fierro, a San Francisco-born musician who has worked for many years in the electronic music scene. His first successful single was "Transmit Liberation", an underground ambient music hit ...

, stage name of musician Miguel Fierro * Sports teams representing

Scotland Scotland is a Countries of the United Kingdom, country that is part of the United Kingdom. It contains nearly one-third of the United Kingdom's land area, consisting of the northern part of the island of Great Britain and more than 790 adjac ...

, by country code * Railway service code for

South Coast Line The South Coast Line (SCO) is an Regional rail, intercity rail service that services the Illawarra region of New South Wales, Australia. The service runs from , and runs the entire length of the eponymous South Coast railway line, New South W ...

, New South Wales, Australia *

Syllabus A syllabus (; : syllabuses or syllabi) or specification is a document that communicates information about an Academy, academic course or class and defines expectations and responsibilities. It is generally an overview or summary of the curriculum. ...

, or Standard Course Outline * United States Office of Special Counsel (disambiguation), various government offices referred to as the "Special Counsel's Office" {{disambiguation