Mifflin Township is one of the thirteen townships of Wyandot County, north central Ohio, United States.

Located in the southwestern part of the county, it borders the following townships: Part of the village of Kirby is located in northwestern Mifflin Township.

Statewide, other Mifflin townships are located in Ashland, Franklin, Pike, and Richland counties.

The township is governed by a three-member board of trustees, who are elected in November of odd-numbered years to a four-year term beginning on the following January 1.

This is held in November of the year before the presidential election.