5

5 (formerly known as Channel 5 and Five) is a British free-to-air public broadcast television channel owned and operated by Channel 5 Broadcasting Limited, a wholly owned subsidiary of Paramount Skydance's UK and Australia division. It was launched in 30 March 1997 to provide a fifth national terrestrial channel in the United Kingdom.

Channel 5 was renamed Five, from 16 September 2002 until 13 February 2011. Most of this was under the RTL Group's ownership with Richard Desmond purchasing the channel on 23 July 2010 and reverting the name change. On 1 May 2014, the channel was acquired by Viacom (now Paramount Global) for £450 million (US$759 million).Channel 5 was rebranded as 5 on 12 March 2025 along with its streaming service.

It is a general entertainment channel that shows internally commissioned programmes such as The Drowning, All Creatures Great and Small and Ben Fogle: New Lives in the Wild. The channel has also relied on imports from the United States, including the CSI franchise, the NCIS franchise, the first three series in the Law & Order franchise, Power Rangers, The Mentalist, Body of Proof, Once Upon a Time, Dallas, Under the Dome, and sitcom Friends.