The Australian Active Service Medal 1945–1975 recognises the service of Australian Defence Force and certain other persons in prescribed warlike operations in the period after World War II, and prior to February 1975.

Recipients of this medal are also entitled to the issue of the Returned from Active Service Badge.

During this period campaign and service medals under the UK system were originally issued.

The AASM 1945–75 was issued retrospectively to provide an Australian recognition of the service.

Some of the international and host nation medals have been granted a blanket authority for all recipients to wear.