GB News is a British free-to-air, opinion-orientated television and radio news channel. The channel is available on Freeview, Freesat, Sky, YouView, Virgin Media and via the internet on Samsung TV Plus, LG webOS TV's (LG Channels), Rakuten TV, Apple TV and YouTube. An audio simulcast of the station is also available on DAB+ radio. In Australia, GB News is available on the Foxtel pay TV platform and on Foxtel's associated live TV news app, Flash.

Announced in September 2020 and launched in June 2021 from studios at Paddington Basin, London, GB News became Britain's first television news start-up since the launch of Sky News in 1989. It was set up with the aim of broadcasting "original news, opinion and debate", with a mix of news coverage and opinion-based content. Hosts of shows on the channel include Nigel Farage, Eamonn Holmes, Michael Portillo, Jacob Rees-Mogg, and Camilla Tominey.

GB News is jointly owned by hedge fund manager Sir Paul Marshall and investment firm Legatum, under the umbrella of a holding company, All Perspectives Ltd, which is headquartered in London. As of August 2022, All Perspectives Ltd was controlled by three significant shareholders, all of whom work for Christopher Chandler's Dubai-based investment firm Legatum. The CEO of GB News is Angelos Frangopoulos, who formerly ran Sky News Australia. The journalist and broadcaster Andrew Neil, who left the BBC in 2020 to join the channel, became its first chairman and presented a primetime evening programme. He left in September 2021, two weeks after the official launch, having presented only nine episodes.

The channel is described as right-wing on political issues. It had been found to have breached Ofcom's standards on several occasions. As of 12 November 2023, it was the subject of 14 investigations into its compliance with Ofcom's due impartiality rules, including cases of potential breaches of the rule that apart from in exceptional circumstances, politicians should not act as newsreaders, reporters or interviewers. As of 17 March 2025, Ofcom has dropped all of its remaining impartiality investigations following a High Court decision to overturn Ofcom's rulings.