The Shire of Moorabool is a local government area in Victoria, Australia, located in the western part of the state.

It covers an area of 2,111 square kilometres (815 sq mi) and, in June 2018, had a population of 34,158.

[1] It includes the towns of Ballan, Bacchus Marsh, Balliang, Mount Wallace, Myrniong, Blackwood, Greendale, Gordon, Korweinguboora and Mount Egerton, Bungaree, Elaine and Wallace.

[2][3] The Shire is governed and administered by the Moorabool Shire Council; its seat of local government and administrative centre is located at the council headquarters in Ballan, it also has service centres located in Bacchus Marsh and Darley.

The Shire is named after the Moorabool River, a major geographical feature that meanders through the area, which is named after the Wathawurrung word moo-roo-bul referring to Bunyip-like creature that lives in the river.