Heathcote High School, established in 1960, is set in grounds near the Royal National Park on the southern side of Sydney, Australia. It is a Government comprehensive co-educational high school.

Heathcote is a suburb of Sydney in the state of New South Wales, Australia. The suburb is located 36 km south of the Sydney central business district in the Sutherland Shire of Southern Sydney. 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.