SC may refer to any of the following:
2. For the country of Seychelles, .sc is the top-level domain for Seychelles websites.
3. SC is short for StarCraft, a computer strategy and simulation game, requiring players to play as one of three races defeat attacking enemy forces and eliminate enemy bases.
4. In telecommunications, SC is a type of optical fiber connector. It is an older type of push/pull connector and being replaced by newer, smaller connectors.
5. The ACM/IEEE Supercomputing Conference, also known as SC, is a technology conference focused on supercomputing, held annually in various U.S. cities since 1988.