Nixon-Skinner Conservation Park (formerly the Nixon-Skinner National Park Reserve) is a protected area located in the Australian state of South Australia in the locality of Myponga about 55 kilometres (34 mi) south of the state capital of Adelaide and about 3.5 kilometres (2.2 mi) south-west of the town of Myponga.

[1][4] The conservation park began in 1948 as a gift of “20 acres of scrub land at Myponga for use as a natural history reserve” by Mrs. Lucy Page to the Field Naturalists Section of the Royal Society of South Australia and was named as the Nixon Skinner sanctuary in memory of her two grandfathers.

On 24 February 1980, a plaque was unveiled by David Wotton, the then Environment Minister for South Australia, in the presence of Mrs Page's three surviving daughters to commemorate the donation of the land.

In 1980, it was described as follows:[4]…Nixon-Skinner Conservation Park supports a stringybark open forest (Eucalyptus obliqua) in the north and central parts and a woodland of E. leucoxylon in the south.

Schoenus tenuissimus which is a rare plant in South Australia … occupies damp sites in the park, which is visited by the spectacular Calyptorhynchus funereus (yellow-tailed black cockatoo).The conservation park is classified as an IUCN Category III protected area.