Port Jefferson Village Historic District is a national historic district located at Port Jefferson in Suffolk County, New York. The district contains 98 contributing buildings. It includes a mix of residences, commercial buildings, and a church. The district is primarily residential dating from 1800 to 1915, with a majority built from the 1840s to 1870s in the Greek Revival and Italianate styles. It was added to the National Register of Historic Places in 2005.