Inauguration of the Commonwealth (also titled Inauguration of the Australian Commonwealth) was a 1901 Australian documentary film commissioned by the Governments of New South Wales and Victoria to record the inaugural day of the Federation of Australia.

Directed by cinematographer Joseph Perry, the film was the first to use simultaneous multiple camera coverage and to run for 35 minutes.

The film was produced by the Limelight Department of the Salvation Army in Australia. It was the first feature-length documentary film to be produced in Australia.

Although the film quality has degraded over time, much of the footage still survives today.

It is currently being held at the National Film and Sound Archive.