GB News is a British free-to-air editorial 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, YouTube and Truth+. An audio simulcast of the station is available on DAB+ radio, Radio Garden and TuneIn 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, Andrew Pierce 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^[update], 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. As of 2025, polling suggested that GB News is the least trusted of the five main news broadcasters in Britain. While it was the only one with a negative net trust (-15), weekly visits by GB News viewers exceeded those visiting Channel 4 News.

The investigation launched into a breach of Ofcom's standards on 12 November 2023, was the subject of 14 separate investigations into the compliance of Ofcom's 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, in GB News favour, that overturned Ofcom's previous findings, that were all ruled unlawful.

All Perspectives Ltd was founded as the holding company of GB News in September 2019, and was granted a licence to broadcast by Ofcom in January 2020. GB News was founded by Andrew James Cole and Mark Schneider, two executives associated with the chairman of Liberty Global, John C. Malone. By August 2022, Cole and Schneider had resigned as directors after their holdings in the company were purchased by backers Sir Paul Marshall and Legatum.

On 25 September 2020, it was announced that Andrew Neil, who had presented live political programmes on the BBC for 25 years, would leave the corporation after leading its coverage of the 2020 United States presidential election. He said that he had been in discussions to continue working on the BBC in a new format after the cancellation of his programme The Andrew Neil Show, but that these talks had "not come to fruition" and he had accepted the post of chairman of a new television news channel. On the same day, he was announced as the presenter of a prime-time evening programme on the channel, due to launch early the next year. In a statement, Neil said that the channel would "champion robust, balanced debate and a range of perspectives on the issues that affect everyone in the UK, not just those living in the London area", and GB News was addressing a perceived gap in the market for "the vast number of British people who feel underserved and unheard by their media".

In December 2020, Paul Marshall, a hedge-fund manager, was in talks to invest £10 million into GB News. On 6 January 2021, GB News reached its £60 million fundraising aim, which it said was oversubscribed. The majority of the £60 million came from the Dubai-based investment firm Legatum, Marshall, who said he was investing in a personal capacity, and American multinational Discovery, Inc.; after the merger of Discovery with WarnerMedia (owners of CNN) to form Warner Bros. Discovery, the company's stake in All Perspectives was bought out by the other backers in August 2022 as part of an additional capital injection of £60 million.