Nornalup is a small town and locality in the Shire of Denmark in the Great Southern region of Western Australia.

The town is located along the South Coast Highway, on the banks of the Frankland River and the shore of the Southern Ocean.

The area attracts considerable numbers of tiger snakes due to its proximity to the river and wetlands, though fewer now than in the past.

[4] Nornalup was the original name of Walpole, which led to some confusion as the townsite and the terminus of the railway line were a considerable distance apart.

[5] The current gazetted townsite of Nornalup is in the west of the locality, just north-west of where the South Coast Highway crosses the Frankland River.