Polk Township is one of the sixteen townships of Crawford County, Ohio, United States.

Located in the southeastern corner of the county, it borders the following townships: The city of Galion is located in central Polk Township.

Polk Township was named for President James K.

[5] 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.

There is also an elected township fiscal officer,[6] who serves a four-year term beginning on April 1 of the year after the election, which is held in November of the year before the presidential election.