Heathfield School is a girls' independent boarding school in Ascot, Berkshire, England. In 2006, the school absorbed St Mary's School, Wantage and was briefly named Heathfield St Mary's School but reverted to Heathfield School in 2009 to try to avoid confusion with the nearby St Mary's School, Ascot, a Catholic boarding school for girls. It is one of two remaining full boarding girls' schools in the United Kingdom, the other being Benenden School in Kent, meaning all pupils board at the school full-time.