Harshaw is an unincorporated community located in Oneida County, Wisconsin, United States.

Harshaw is 13 miles (21 km) west-northwest of Rhinelander, in the town of Cassian.

Harshaw has a post office with ZIP code 54529.

[2] The community was named after Henry B. Harshaw, who was the treasurer of Wisconsin when Charles Norway established the post office in March 1851.

This article about a location in Oneida County, Wisconsin is a stub.