Whian Whian Falls is a broad, low-drop waterfall on Rocky Creek, located along Whian Whian Road about 21 kilometres north of Lismore in northern New South Wales.

The falls measure approximately 5 metres high and 10–15 metres wide, cascading over a rock ledge into a clear swimming hole. A short walk of around 150 metres leads from the roadside parking area down to the falls.

Visitors should follow the track alongside the road to the creek and then turn downstream, rather than taking the track that heads directly into the forest. The falls are accessible year-round, and swimming is available at the base.