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

Located in the southeastern part of the county, it borders the following townships: Most of the village of Crestline is located in central Jackson Township.

[4] It is one of thirty-seven Jackson Townships statewide.

[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.