Heathcote is a suburb, in southern Sydney, in the state of New South Wales, Australia. Heathcote is located 36 km south of the Sydney central business district in the Sutherland Shire. Heathcote is bordered by Engadine to the north and Waterfall to the south. It is bounded by The Royal National Park to the east, and Heathcote National Park to the west.

Heathcote is separated into two sections by the railway line. Heathcote East contains two of the schools and a sports oval. Heathcote West is the larger side with the majority of residents.

Heathcote was originally known as Bottle Forest. There were fourteen town allotments in Bottle Forest in 1842, in what is now Heathcote East. In 1835 Surveyor-General Sir Thomas Mitchell (1792–1855) conducted a survey of the area and named it Heathcote, in honour of an officer who had fought with him during the Peninsula Wars against Napoleon.