Wallan , traditionally known as Wallan Wallan (large circular place of water), is a town in Victoria, 45 kilometres (28 mi) north of Melbourne’s Central Business District. The town sits at the southern end of the large and diverse Shire of Mitchell which extends from the northern fringes of Melbourne into the farming country of north-central Victoria and the lower Goulburn Valley. The township flanks the Hume Freeway and is set against the backdrop of the Great Dividing Range. At the 2021 census it had a population 15,004.

Wallan station is well connected with the V/Line train network on the Seymour line. Mitchell Shire also operates a town to station connecting bus service for peak hour commuters. There is a bus service from Barmah that serves Wallan to Southern Cross station.