The Jewett-Eastman House is a historic house at 37 Portland Street in the center of South Berwick, Maine. Built about 1850, it is a fine local example of Greek Revival architecture. It is most notable for its association with the Jewett family, which included a prominent local businessman and a doctor, as well as the writer Sarah Orne Jewett, who was raised in this house. It served the town for a time as its public library, and is now owned by Historic New England, serving as a gallery space and as the visitors center for the adjacent Sarah Orne Jewett House.