Sf Channel was an Australian subscription channel that airs science fiction, fantasy and related programs. It was available on Foxtel, Austar and Optus Television's subscription platforms.

Sci Fi went live at 6 am on 1 December 2006. SF originally used the same branding and packaging as the United States Sci Fi channel of the same name but had its own schedule and programming, airing shows such as Doctor Who, The X-Files, Buffy The Vampire Slayer, Charmed, both series of Battlestar Galactica, Medium, and the various series of Star Trek and Stargate.

Sci Fi switched broadcasting from 4:3 to 16:9 aspect ratio on 1 December 2008. Sci Fi +2 went to air on 15 November 2009. It rebranded as SF on 18 July 2012.

On 16th August 2013, it was announced that SF's carriage agreement with Foxtel would expire in December 2013, and that negotiations had failed to create a new carriage deal. With Foxtel being the sole subscription TV provider in Australia, this meant that it was expected that SF, and its sister channel TV1, would close. Foxtel announced that a science-fiction dedicated channel would replace SF and would continue to offer the main content currently on offer. On 30th September 2013, SyFy (Australia) announced it would replace SF on Foxtel as of 1 January 2014, and on 1st December 2013, SF announced on Facebook they transmissions would end at midnight New Year's Day.