RAAF Williams is a Royal Australian Air Force (RAAF) military air base set across two locations, at Point Cook and Laverton, located approximately 20 km (12 mi) south-west of the Melbourne central business district in Victoria, Australia. Both establishments previously existed as separate RAAF Bases until 1989 when they were amalgamated to form RAAF Williams. The name was chosen in honour of Air Marshal Sir Richard Williams, the 'father' of the RAAF.

The Royal Australian Air Force (RAAF) is the principal aerial warfare force of Australia, a part of the Australian Defence Force (ADF) along with the Royal Australian Navy and the Australian Army. Constitutionally the Governor-General of Australia is the de jure Commander-in-Chief of the Australian Defence Force. The Royal Australian Air Force is commanded by the Chief of Air Force (CAF), who is subordinate to the Chief of the Defence Force (CDF). The CAF is also directly responsible to the Minister for Defence, with the Department of Defence administering the ADF and the Air Force.