Sci-fi is the name of a United Kingdom satellite television channel specialising in science fiction, fantasy, and horror shows and movies. It was originally called The Sci-Fi Channel and was set up by the owners of the original Sci Fi Channel (United States), but is now independent.

Programmes on the channel have included UK premieres of series 3 and 4 of Lexx, the miniseries Dune, and Farscape. An original production is Headf**k (the asterisks are included in the original title), which features excerpts from weird and wonderful TV shows and short films from around the world. Some episodes were presented by David Icke.

Also see: List of science fiction television programs