Port Wing (also Portwing) is an unincorporated census-designated place in the Town of Port Wing, Bayfield County, Wisconsin, United States. The community is located on Wisconsin Highway 13, 30 miles west of Bayfield. The Flagg River enters Lake Superior at Port Wing's harbor.
As of the 2010 census, its population is 164. Port Wing has an area of 1.150 square miles (2.98 km2), all of it land.
Port Wing is the site of South Shore School District.