Sir Peter Lytton Bazalgette (/ˈbæzəldʒɛt/; born 22 May 1953) is a British television executive and producer, also active in the fields of the Arts and broader creative industries.

A great-great-grandson of Victorian civil engineer Sir Joseph Bazalgette, a third cousin is Edward Bazalgette, who directed and produced the 2003 documentary The Sewer King, which charted Sir Joseph Bazalgette's design and engineering of the London sewers. Peter Bazalgette presented a later television show for Five, called The Great Stink, and chaired the Crossness Engines Trust raising £4.5 million to restore the Victorian pumping station built by his ancestor.

His parents, Peter Bazalgette and Diana née Coffin, did not have a television until he was 12 years old. He attended Dulwich College and then studied Law at Fitzwilliam College, Cambridge, graduating with a third-class degree and also serving as President of the Cambridge Union Society.

Married since 1985 to Hilary Newiss, an intellectual property rights lawyer, with two children, Sir Peter and Lady Bazalgette live in Notting Hill, London.

Bazalgette joined the BBC News graduate news training scheme, and was subsequently picked by Dame Esther Rantzen as a researcher on That's Life! from 1978. While a reporter at the BBC for Man Alive, he joined Eric Parsloe's video production company Epic. The BBC put him in charge of producing the programme Food and Drink, where he claims to have created the celebrity chef. He continued producing by forming his own production company Bazal, which created hits for British TV including Ready Steady Cook, Changing Rooms and Ground Force. In 1990, Bazal was acquired by Broadcast Communications, which itself was absorbed by Endemol.

In January 2005, Bazalgette became Chairman of Endemol UK and Creative Director of Endemol Group worldwide. He was responsible for television shows including Big Brother and Deal or No Deal which were hits around the world, and led Endemol's digital entertainment strategy. Although Big Brother was conceived from an existing series in the Netherlands, Bazalgette is credited with popularising the format around the world thanks to the adaptations he built into the UK version. During Bazalgette's time on the global board, Endemol grew strongly and in 2005 it was launched on the Dutch stock exchange. Over the following eighteen months, it trebled in value and was sold in 2007 for €3.2 billion. In September 2007 it was announced that Bazalgette was standing down as Chairman and would assume the role of advisor.

Bazalgette has long championed the value of the BBC for its trusted news and critical investment in original programming and creative talent. Along with others he has speculated how long the current funding model of the BBC will last, and whether in the future the licence fee might be reduced to pay specifically for core news and information content.

Bazalgette has been elected a Fellow of BAFTA and the Royal Television Society, and was President of the Royal Television Society 2010–17. He was as a non-executive director of the Department for Culture, Media and Sport. In September 2012 he was appointed Chairman of Arts Council England, and began his 4-year term on 31 January 2013.