The acronym SCO can be expanded as follows.

Organizations

• The Shanghai Cooperation Organization, a military and economic intergovernmental organization
• Santa Cruz Operation, a company founded in 1979, which sold a major division and its namesake trademark in 2001, and has since renamed itself Tarantella. It was acquired by Sun Microsystems in 2005.
• SCO Group, a company originally known as "Caldera Systems", which acquired several assets from Santa Cruz Operation in 2001: a UNIX licensing business, two divisions of the former Santa Cruz Operation, and the "SCO" trademark. Caldera later changed its name to "SCO Group".
• The Scottish Chamber Orchestra
• The Singapore Chinese Orchestra
• The Southern College of Optometry in Memphis, Tennessee
• A shortened name for Osco Drug

Codes

• The country code for Scotland, as used on the EU-styled version of Scottish car number plates
• Scots language (ISO 639 alpha-3, sco)
• .sco - the proposed national internet TLD for Scotland

Others

• Selected Characteristics of Occupations, a companion volume to the U.S. Department of Labor's Dictionary of Occupational Titles
• Space Cowboy Online, an action-based Massive Multiplayer Online (MMO) 3D Space Shooter game
• Sharable Content Objects in the organization of courseware - see SCORM
• The Synchronized, Connection Oriented protocol used for e.g. headsets and other audio devices in the Bluetooth protocol stack
• Angers SCO, French football club

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