Northam is a town in the Wheatbelt region of Western Australia, situated at the confluence of the Avon and Mortlock Rivers. It is the largest town and regional centre in the Avon Valley region of the Central Wheatbelt. It is located approximately 97 kilometres north east of Perth, the capital city of Western Australia. At the time of the 2021 census, Northam had a population of 6,679.

The Wheatbelt is one of nine regions of Western Australia defined as administrative areas for the state's regional development, and a vernacular term for the area converted to agriculture during colonisation. It partially surrounds the Perth metropolitan area, extending north from Perth to the Mid West region, and east to the Goldfields–Esperance region. It is bordered to the south by the South West and Great Southern regions, and to the west by the Indian Ocean, the Perth metropolitan area, and the Peel region. Altogether, it has an area of 154,862 square kilometres (59,793 sq mi).