Air Marshal Sir Kevin James Leeson, (born 11 June 1956) is a retired Royal Air Force engineer officer, whose final appointment was as Chief of Materiel – Air at the Defence Equipment and Support organisation, concurrently holding the appointments of Air Member for Materiel on the Air Force Board and Chief Engineer (RAF), at which point he was the most senior non-aircrew officer in the service. Having been responsible for various aspects of engineering support to the Tornado aircraft and the introduction of the Eurofighter Typhoon into service, he held several senior appointments at the Ministry of Defence before taking up his final appointment in 2009. He retired from the RAF in October 2012.