Geoffrey William Hoon is a British Labour Party politician who served as the Member of Parliament (MP) for Ashfield in Nottinghamshire from 1992 to 2010. He is a former Defence Secretary, Transport Secretary, Leader of the House of Commons and Government Chief Whip.

The Secretary of State for Defence, also known as the Defence Secretary, is a secretary of state in the Government of the United Kingdom, with responsibility for the Ministry of Defence. As a senior minister, the incumbent is a member of the Cabinet of the United Kingdom.