| Official Name: | Sullivan Township, Ashland County, Ohio |
| Settlement Type: | Township |
| Mapsize: | 250px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Ohio |
| Subdivision Type2: | County |
| Subdivision Name2: | Ashland |
| Unit Pref: | Imperial |
| Area Total Km2: | 66.2 |
| Area Land Km2: | 65.8 |
| Area Water Km2: | 0.4 |
| Population As Of: | 2020 |
| Population Total: | 2620 |
| Population Density Km2: | 38.2 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Footnotes: | [1] |
| Elevation M: | 346 |
| Elevation Ft: | 1135 |
| Coordinates: | 41.0294°N -82.2225°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 44880 |
| Area Code: | 419 |
| Blank Name: | FIPS code |
| Blank Info: | 39-75357[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1085715 |
Sullivan Township is one of the fifteen townships of Ashland County, Ohio, United States. The population was 2,620 at the 2020 census.[3]
Located in the northeastern corner of the county, it borders the following townships:
No municipalities are located in Sullivan Township, although the unincorporated community of Sullivan is located in the center of the township.
Sullivan Township was organized in 1819 as part of Medina County, and then became part of Lorain County in December 1822.[4] It was added to Ashland County when it was formed on February 24, 1846 from portions of Huron, Lorain, Richland, and Wayne counties.[5]
It is the only Sullivan Township statewide.[6]
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. Two are elected in the year after the presidential election and one is elected in the year before it. There is also an elected township fiscal officer,[7] 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. Vacancies in the fiscal officership or on the board of trustees are filled by the remaining trustees.