Finniss Conservation Park is a protected area in the Australian state of South Australia located in the Mount Lofty Ranges about 43 kilometres (27 miles) south of the state capital of Adelaide and about 7 kilometres (4.3 miles) west of Ashbourne.

[2][5] The conservation park consists of the following land in the cadastral unit of the Hundred of Kondoparinga - "Allotment 22 of DP 63695" and sections 107, 108 and 1963.

In 1980, the conservation park was described as follows:[5]A small park preserving a natural remnant of the open forest and scrub associations representative of the region, including one of the best preserved areas of Eucalyptus cosmophylla scrub in the South Mount Lofty Ranges.

The park includes crest, slope and valley floor associations and affords good views of the coast... A high rocky plateau and south trending ridges with steep intervening valleys, including a short stretch of the Finniss River.

The eastern end includes the plateau and is vegetated by very dense, spectacular scrub of E. cosmophylla, Hakea prostrata, Hulcina, Allocasuarina muelleriana, Leptospermum juniperinum and Tetratheca pilosa...