South Salem is a hamlet in the Town of Lewisboro, Westchester County, in the U.S. state of New York.

Notable residents have included the 33rd Vice President of the United States Henry A. Wallace, Major John Andre (British spy held captive), Rolling Stones guitarist Keith Richards, photographer O. Winston Link, artist Charles Sheeler (American, 1883–1965), pianist Hélène Grimaud, composer and arranger Clare Grundman, singer and musical stage headliner Sally Ann Howes, actress Colleen Dewhurst, bond salesman Joseph Schembri, and notorious real estate scion Robert Durst.

The Osborn–Bouton–Mead House was added to the National Register of Historic Places in 2004.

Meadow Pond Elementary School is in South Salem.

This article about a location in Westchester County, New York is a stub.