Ben Key


Sir Ben Key

Key in 2022
Born (1965-11-07) 7 November 1965
AllegianceUnited Kingdom
BranchRoyal Navy
Service years1984–2025
RankAdmiral
Service numberC031724D
CommandsFirst Sea Lord
Chief of Joint Operations
Fleet Commander
HMS Illustrious
HMS Lancaster
HMS Iron Duke
HMS Sandown
ConflictsKosovo War
Iraq War
AwardsKnight Commander of the Order of the Bath
Commander of the Order of the British Empire
Bronze Star Medal (United States)
Alma materRoyal Holloway, University of London
Britannia Royal Naval College

Admiral Sir Benjamin John Key, KCB, CBE (born 7 November 1965) is a former Royal Navy officer, who served as First Sea Lord from November 2021 to May 2025. On 2 July 2025, the Ministry of Defence announced that Key's service and commission had been terminated following an investigation into allegations of inappropriate behaviour, which found him to have "fallen far short of the values and standards expected of service personnel".

Key had commanded HM Ships Sandown, Iron Duke, Lancaster, and Illustrious, and deployed on operations to Kosovo and Iraq. He was appointed Fleet Commander in 2016, and the Chief of Joint Operations in 2019.