Amphitheatre is a small town in Victoria, Australia. It is located on the Pyrenees Highway in the Pyrenees Shire, south-west of Avoca. At the 2006 census, Amphitheatre and the surrounding area had a population of 291.Amphitheatre was originally located further south of its current location, in the natural amphitheatre after which it is named. A Post Office opened on 22 June 1859.At the end of the gold mining period of the late 19th century the township was moved to the highway.