Terminator: The Sarah Connor Chronicles (sometimes abbreviated as Terminator: TSCC or simply TSCC) is an American science fiction drama television series. It aired on Fox from January 13, 2008 to April 10, 2009, spanning 31 episodes across two seasons. It is a spin-off from the Terminator film series, disregarding the events of Terminator 3: Rise of the Machines and picking up shortly after Terminator 2: Judgment Day. The series revolves around the lives of Sarah Connor (portrayed by Lena Headey) and her son John (Thomas Dekker), who work to prevent the creation of Skynet, an artificially intelligent computer system that will eventually launch a nuclear war on humans.

The Sarah Connor Chronicles was created by writer and executive producer Josh Friedman, marking his television debut. Production companies included Warner Bros. Television and C2 Pictures, the latter replaced by The Halcyon Company in season two. The series was produced by C2 founders Mario Kassar and Andrew G. Vajna, who also produced Terminator 3. Other producers included C2 executive James Middleton and television director David Nutter, who helmed the pilot episode. The show's soundtrack was composed by Bear McCreary.

The Sarah Connor Chronicles was greenlit in 2007 for a thirteen-episode season, which was reduced to nine episodes because of the Writers Guild of America strike. The series premiered mid-season and would go on to receive generally positive reviews, but it also saw low viewership ratings as it progressed through its second season. The Sarah Connor Chronicles was cancelled on May 18, 2009, despite a fan campaign urging Fox to renew it.