Rocky Creek Dam is a drinking water catchment dam on the North Coast of New South Wales, Australia. The dam forms the waterbody known as Rocky Lake. As the principal source for Rous Water it supplies water for the majority of the Far North Coast of New South Wales including Lismore, Ballina, Byron Bay, Evans Head and Alstonville.
The Rocky Creek Dam catchment is made up of 31 km² which includes the Whian Whian State Forest, Nightcap National Park and Whian Whian State Conservation area. The area was once used for logging but is now has a conserved and generally pristine catchment environment for the North Coast of New South Wales.