SCO
SCO may refer to:
- Shanghai Cooperation Organization, an international organization
- one of two distinct companies:
- SCO Group - Company originally known as "Caldera Systems", which acquired several things from Santa Cruz Operation in 2001. Among those: source code for UNIX, two divisions of the former Santa Cruz Operation, and the "SCO" trademark. Caldera later changed its name to "SCO Group".
- Santa Cruz Operation - Company founded in 1979, which sold a major division and its namesake trademark in 2001, and renamed itself Tarantella.
- Sharable Content Objects in the organization of courseware
- The country code for Scotland, as used on the new EU version of Scotland's car registration plates
- Scots language (ISO 639 alpha-3, sco)
fr:SCO