Deacon John Leavitt (1608–1691) was a tailor, public officeholder, and founding deacon of Old Ship Church in Hingham, Plymouth County, Massachusetts, the only remaining 17th-century Puritan meeting house in America and the oldest church in continuous ecclesiastical use in the United States. Hingham's Leavitt Street [1] is named for the early settler, whose descendants have lived in Hingham for centuries.[2]