Geoffrey William "Geoff" Hoon (born 6 December 1953) is a British politician. He is a Labour Member of Parliament for Ashfield, and a former Defence Secretary, Leader of the House of Commons and Chief Whip. He served as the Secretary of State for Transport from October 2008 until his resignation on 5 June 2009.

Geoff 'Buff' Hoon was born in Derby, England, and is the son of railwayman Ernest (who also saw action in the RAF in World War II, serving in India and Burma) and June Collett. He was educated at the independent Nottingham High School (where he was a member of the Combined Cadet Force from 1967-70). Before university, he worked as a labourer in a furniture factory for a year from 1972-3. He then went to read law at Jesus College, Cambridge, becoming the first person in his family to go to university. He gained his BA in 1974, followed by a master's degree. He was a law lecturer at the University of Leeds from 1976 until 1982, and was a warden at the all-male Devonshire Hall. He was called to the Bar at Gray's Inn in 1978, and was also a visiting law professor at the University of Louisville, Kentucky from 1980-1. In 1982, he became a practising barrister for two years in Nottingham.

Hoon was elected as a Member of the European Parliament for Derbyshire in 1984 and served in Brussels and Strasbourg for ten years. He was elected as a member of the British House of Commons at the 1992 general election for Ashfield following the retirement of the sitting Labour MP Frank Haynes. Hoon held the seat with a majority of 12,987 and has remained the MP there since, making his maiden speech on 20 May 1992. His notorious skill is 'stonewalling' - deflecting difficult questions by 'playing a straight bat', or appearing to do so. Hoon also attended the secretive Bilderberg Conference in Scotland in 1998.