The Guardian is an American drama television series created by David Hollander for CBS. It originally aired from September 25, 2001, to May 4, 2004. In the United States, as of September 2018, it was being broadcast in re-runs on Heroes & Icons and Paramount+. The Guardian has aired in the United Kingdom on the Hallmark Channel, ABC1 (April 2006) and, more recently, 5USA (May 2009) and Five (August 2009). In Turkey, the show aired on TNT and in Australia on Network Ten; as of 2011 re-runs are airing on the Nine Network following episodes of Simon Baker's 2008–2015 vehicle The Mentalist, but before on free-to-air television, the show has also aired on Foxtel's defunct station TV1 (now TVH!TS) in 2003 during the Saturday Night's Crime Time Block before Law & Order: Criminal Intent and Law & Order: SVU. In India and Pakistan the show airs on Animax from June 2010 and AXN and FX. In Singapore, the show airs on AXN through Starhub Cable Television. In New Zealand, the show airs on Vibe, channel 7, via sky TV. In Latin America, the series premiered in October 2012 on the Sony Spin channel.

The show stars Simon Baker and Dabney Coleman. It includes guest stars, such as Farrah Fawcett, and featured scenes with the Pittsburgh Police in multiple episodes.