Trawalla is a town in central Western Victoria, Australia, located on the Western Highway, 41 kilometres (25 mi) west of Ballarat and 154 kilometres (96 mi) west of Melbourne, in the Shire of Pyrenees. At the 2006 census, Trawalla and the surrounding agricultural area had a population of 224.

The Western Highway is the Victorian part of the principal route linking the Australian cities of Melbourne and Adelaide, with a length of approximately 258 kilometres (160 mi) of single carriageway, then 161 kilometres (100 mi) of dual carriageway known as the Western Freeway. It is a part of the National Highway network and designated routes A8 and M8. The western end continues into South Australia as the Dukes Highway, the next section of the Melbourne–Adelaide National Highway. The Western Freeway joins Melbourne's freeway network via the Western Ring Road, in the western suburbs of Melbourne.