Onkaparinga River Recreation Park is a protected area occupying land in the estuary of the Onkaparinga River in South Australia. The recreation park which was established in 1985 is approximately 32 km (20 mi) from Adelaide city centre. It is the venue for recreational activities such as walking, canoeing, kayaking, recreational fishing and picnics.

The Onkaparinga River, known as Ngangkiparri or Ngangkiparingga in the Kaurna language, is a river located in the Southern Adelaide region in the Australian state of South Australia. Rising in the Mount Lofty Ranges, the river's estuary extends from Old Noarlunga to the river's mouth between the suburbs of Port Noarlunga and Port Noarlunga South.