Port Wing (also Portwing) is an unincorporated census-designated place in the town of Port Wing, Bayfield County, Wisconsin, United States. As of the 2020 census, Port Wing had a population of 156. The community is situated along Wisconsin Highway 13 and Bayfield County Highway A and is west of Bayfield. The Flag River enters Lake Superior at Port Wing's harbor.
As of the 2020 census, Port Wing's population was 156, which was a decrease from the figure of 164 tabulated in 2010. Port Wing has an area of , all land.
Port Wing is the site of South Shore School District.