Ephraim Flint (March 4, 1714 – December 6, 1762) was one of the founders of today's Lincoln, Massachusetts, in 1754.

His paternal grandfather, John Flint Sr., was a prominent citizen of Concord.

[3] Flint settled in Concord, part of which he helped re-settle as Lincoln, Province of Massachusetts Bay, in 1754.

One of their children was Mary Hartwell (1747–1846), who became noted for her assistance to the local militia during the early stages of the battles of Lexington and Concord.

His widow remarried, to Captain Bradwell Smith, and lived until the age of 82.