Deal Island Historic District is a national historic district at Deal Island, Somerset County, Maryland, United States.

It includes Deal Island Harbor, still an active marina for fishing boats and an occasional skipjack.

The 433-acre (1.75 km2) district contains 81 buildings and three cemeteries that contribute to its significance.

[2] It was added to the National Register of Historic Places in 2006.

This article about a Registered Historic Place in Somerset County, Maryland is a stub.