Marshal of the Royal Air Force Sir Dermot Alexander Boyle, GCB, KCVO, KBE, AFC (2 October 1904 – 5 May 1993) was a senior officer in the Royal Air Force. He served in the Second World War initially as a staff officer with the Advanced Air Striking Force in Reims in which capacity he organised the evacuation of the Force through Brest in May 1940. His war service included tours as a bomber squadron commander, as a station commander and also as an air group commander. He was Chief of the Air Staff in the late 1950s and, in that role, deployed British air power during the Suez Crisis in October 1956 and defended the RAF against the views of Duncan Sandys, the Minister for Defence, who believed that the V bomber force rendered manned fighter aircraft redundant.