Koyna Wildlife Sanctuary is a wildlife sanctuary and natural World Heritage Site located in Satara district of the Indian state of Maharashtra. The sanctuary is nested in the Western Ghats, covering an area of around 423.55km2 and elevations ranging from 600 to 1100m, It was notified in 1985 as a wildlife sanctuary situated in Maharashtra. It forms the northern portion of the Sahyadri Tiger Reserve, with Chandoli National Park forming the southern part of the reserve.