Lismore is a city located in the Northern Rivers region of New South Wales, Australia and the main population centre in the City of Lismore local government area, it is also a regional centre in the Northern Rivers region of the state. Lismore is 734 km (456 mi) north of Sydney and 200 km (120 mi) south of Brisbane. It is situated on a low floodplain on the banks of the Wilsons River near the latter’s junction with Leycester Creek, both tributaries of the Richmond River which enters the Pacific Ocean at Ballina, 30 km (19 mi) to the east.

At the 2021 census, there were 28,816 people in built-up Lismore.