Air Marshal Sir Alister Murray Murdoch, was a senior commander in the Royal Australian Air Force (RAAF). He served as Chief of the Air Staff (CAS) from 1965 to 1969. Joining the Air Force in 1930, Murdoch trained as a seaplane pilot and participated in an Antarctic rescue mission for lost explorers in 1935. During World War II, he commanded No. 221 Squadron RAF in Europe and the Middle East, and later occupied senior positions on the staff of RAAF formations in the South West Pacific. His post-war appointments included Commandant of RAAF College from 1952 to 1953, Air Officer Commanding (AOC) Training Command from 1953 to 1955, Deputy Chief of the Air Staff from 1958 to 1959, and AOC Operational Command from 1962 to 1965.

Chief of Air Force (CAF) is the most senior appointment in the Royal Australian Air Force (RAAF), responsible to the Chief of the Defence Force (CDF) and the Secretary of the Department of Defence. The rank associated with the position is air marshal (three-star). The role encompasses "the delivery of aerospace capability, enhancing the Air Force's reputation and positioning the Air Force for the future". It does not include direction of air operations, which is the purview of the Air Commander Australia, a two-star position responsible directly to CDF in such circumstances but nominally reporting to CAF.