Newton South High School is one of two public high schools in the city of Newton, Massachusetts, United States, the other being Newton North.

Newton is a city in Middlesex County, Massachusetts, United States. It is approximately 7 miles (11 km) west of downtown Boston, and comprises a patchwork of thirteen villages without a city center. It is home to the Charles River, Crystal Lake, and Heartbreak Hill, among other landmarks. It is served by several streets and highways, as well as the Green Line D branch run by the MBTA.