Berriwillock is a town in the Mallee region in the north-west of the Australian state of Victoria. Berriwillock is 332 kilometres (206 mi) north-west of the state capital, Melbourne. Nearby towns include Boigbeat (about 11 kilometres (6.8 mi) north west and Culgoa 11 kilometres (6.8 mi) south east.

Berriwillock is adjacent to the Calder Highway, 334 kilometres (208 mi) northwest of Melbourne. It was formerly served by the Berriwillock railway station on the Kulwin railway line. The line has not carried passenger services since 1977, but is still available for freight (bulk grain), and there are bulk grain silos at the station.