The BBC News at One is the afternoon news bulletin from the BBC. Produced by BBC News, the programme is broadcast on BBC One and the BBC News channel on Monday to Sunday 1:00pm.

Like the BBC News at Six and BBC News at Ten, the programme is presented by a single newsreader; usually Sophie Raworth from Tuesday to Friday, and Kate Silverton on Mondays.

The BBC News at One achieved an average reach of 2.7 million viewers per bulletin in 2007, making it the most watched programme on UK daytime television.

The One O'Clock News launched on the 27 October 1986 together with the daytime television service on BBC One serving as a replacement to the BBC News After Noon programme. Martyn Lewis, who had joined the BBC from rival ITN, was the original presenter.

A unified look across BBC news output was introduced in April 1993, and the News at One adopted this look, though still kept some of its individuality, such as a stereo version of the theme music.

A new look across all of BBC News television output on 10 May 1999 meant that for the first time all the main bulletins on BBC One had the same look, the only exception being the title of the programme. At this time Anna Ford took over as the main presenter of the bulletin, staying until her retirement from news reading in April 2006.

News at One may refer to:

BBC News is the department of the British Broadcasting Corporation (BBC) responsible for the gathering and broadcasting of news and current affairs. The department is the world's largest broadcast news organisation and generates about 120 hours of radio and television output each day, as well as online news coverage. The service maintains 44 foreign news bureaux and has correspondents in almost all of the world's 240 countries. Since 2004, the Director of BBC News has been Helen Boaden.

The department's annual budget is £350 million; it has 3,500 staff, 2,000 of whom are journalists. Through the BBC English Regions, BBC News has regional centres across England as well as national news centres in Northern Ireland, Scotland, and Wales. All regions and nations produce their own local news programmes and other current affairs and sport programmes.

Radio and television operations are broadcast from BBC Television Centre in West London, though are due to move to the newly refurbished Broadcasting House in central London by 2013. Television Centre houses all domestic, global, and online news divisions within one main newsroom. Parliamentary coverage is produced and broadcast from studios in Millbank in London.

Margaret Hilda Thatcher, Baroness Thatcher, LG, OM, PC, FRS, née Roberts (born 13 October 1925) is a British politician and the longest-serving (1979–1990) British prime minister of the 20th century, and the only woman ever to have held the post. A Soviet journalist nicknamed her the "Iron Lady", which later became associated with her uncompromising politics and leadership style. As prime minister, she implemented conservative policies that have come to be known as Thatcherism.

Originally a research chemist before becoming a barrister, Thatcher was elected Member of Parliament (MP) for Finchley in 1959. Edward Heath appointed her Secretary of State for Education and Science in his 1970 government. In 1975 Thatcher defeated Heath in the Conservative Party leadership election and became Leader of the Opposition, as well as the first woman to lead a major political party in the United Kingdom. She became prime minister after winning the 1979 general election.

After entering 10 Downing Street, Thatcher introduced a series of political and economic initiatives to reverse what she perceived as Britain's precipitous national decline. Her political philosophy and economic policies emphasised deregulation (particularly of the financial sector), flexible labour markets, the privatisation of state-owned companies, and reducing the power and influence of trade unions. Thatcher's popularity during her first years in office waned amid recession and high unemployment, until economic recovery and the 1982 Falklands War brought a resurgence of support, resulting in her re-election in 1983. Thatcher was re-elected for a third term in 1987, but her Community Charge (popularly referred to as "poll tax") was widely unpopular and her views on the European Community were not shared by others in her Cabinet. She resigned as Prime Minister and party leader in November 1990, after Michael Heseltine launched a challenge to her leadership.