The Wappa Dam is a mass concrete gravity arch dam with earth-fill abutments and an un-gated spillway across the South Maroochy River that is located in the South East region of Queensland, Australia. The main purpose of the dam is for supply of potable water for the Sunshine Coast region. The impounded reservoir is also called Wappa Dam. The dam and most of the reservoir are within Kiamba with the most northerly part of the reservoir in Cooloolabin, both in the Sunshine Coast Region.

The Sunshine Coast is a peri-urban region in South East Queensland, Australia. It is the district defined in 1967 as "the area contained in the Shires of Landsborough, Maroochy and Noosa, but excluding Bribie Island". Located 100 km (62 mi) north of the centre of Brisbane in South East Queensland, on the Coral Sea coastline, its urban area spans approximately 60 km (37 mi) of coastline and hinterland from Pelican Waters to Tewantin.