Manns Harbor is a census-designated place community in Dare County, North Carolina, United States. Located east of the intersection of US 64 and US 264; it is nestled along the western bank of the Croatan Sound. Before 1957, Manns Harbor used to harbor a ferry that traversed the Croatan Sound and provided access to Roanoke Island. Today, the William B. Umstead Bridge (completed in 1957) and the 4-lane Virginia Dare Memorial Bridge (completed in 2002) link Manteo, North Carolina to the mainland.