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- Cadiz Township, Harrison County, Ohio
- Caesarscreek Township, Greene County, Ohio
- Cambridge Township, Guernsey County, Ohio
- Camden Township, Lorain County, Ohio
- Camp Creek Township, Pike County, Ohio
- Canaan Township, Athens County, Ohio
- Canaan Township, Madison County, Ohio
- Canaan Township, Morrow County, Ohio
- Canaan Township, Wayne County, Ohio
- Canfield Township, Mahoning County, Ohio
- Canton Township, Stark County, Ohio
- Cardington Township, Morrow County, Ohio
- Carlisle Township, Lorain County, Ohio
- Carroll Township, Ottawa County, Ohio
- Carryall Township, Paulding County, Ohio
- Carthage Township, Athens County, Ohio
- Cass Township, Hancock County, Ohio
- Cass Township, Muskingum County, Ohio
- Cass Township, Richland County, Ohio
- Catawba Island Township, Ottawa County, Ohio
- Cedarville Township, Greene County, Ohio
- Center Township, Carroll County, Ohio
- Center Township, Columbiana County, Ohio
- Center Township, Guernsey County, Ohio
- Center Township, Mercer County, Ohio
- Center Township, Monroe County, Ohio
- Center Township, Morgan County, Ohio
- Center Township, Noble County, Ohio
- Center Township, Williams County, Ohio
- Center Township, Wood County, Ohio
- Cessna Township, Hardin County, Ohio
- Chagrin Falls Township, Cuyahoga County, Ohio
- Champion Township, Trumbull County, Ohio
- Chardon Township, Geauga County, Ohio
- Charlestown Township, Portage County, Ohio
- Chatfield Township, Crawford County, Ohio
- Chatham Township, Medina County, Ohio
- Cherry Valley Township, Ashtabula County, Ohio
- Cheshire Township, Gallia County, Ohio
- Chester Township, Clinton County, Ohio
- Chester Township, Geauga County, Ohio
- Chester Township, Meigs County, Ohio
- Chester Township, Morrow County, Ohio
- Chester Township, Wayne County, Ohio
- Chesterfield Township, Fulton County, Ohio
- Chippewa Township, Wayne County, Ohio
- Circleville Township, Pickaway County, Ohio
- Claibourne Township, Union County, Ohio
- Claridon Township, Geauga County, Ohio
- Claridon Township, Marion County, Ohio
- Clark Township, Brown County, Ohio
- Clark Township, Clinton County, Ohio
- Clark Township, Coshocton County, Ohio
- Clark Township, Holmes County, Ohio
- Clarksfield Township, Huron County, Ohio
- Clay Township, Auglaize County, Ohio
- Clay Township, Gallia County, Ohio
- Clay Township, Highland County, Ohio
- Clay Township, Knox County, Ohio
- Clay Township, Montgomery County, Ohio
- Clay Township, Muskingum County, Ohio
- Clay Township, Ottawa County, Ohio
- Clay Township, Scioto County, Ohio
- Clay Township, Tuscarawas County, Ohio
- Clayton Township, Perry County, Ohio
- Clear Creek Township, Ashland County, Ohio
- Clearcreek Township, Fairfield County, Ohio
- Clearcreek Township, Warren County, Ohio
- Clinton Township, Franklin County, Ohio
- Clinton Township, Fulton County, Ohio
- Clinton Township, Knox County, Ohio
- Clinton Township, Seneca County, Ohio
- Clinton Township, Shelby County, Ohio
- Clinton Township, Vinton County, Ohio
- Clinton Township, Wayne County, Ohio
- Coal Township, Jackson County, Ohio
- Coal Township, Perry County, Ohio
- Coitsville Township, Mahoning County, Ohio
- Colebrook Township, Ashtabula County, Ohio
- Colerain Township, Belmont County, Ohio
- Colerain Township, Hamilton County, Ohio
- Colerain Township, Ross County, Ohio
- College Township, Knox County, Ohio
- Columbia Township, Hamilton County, Ohio
- Columbia Township, Lorain County, Ohio
- Columbia Township, Meigs County, Ohio
- Concord Township, Champaign County, Ohio
- Concord Township, Delaware County, Ohio
- Concord Township, Fayette County, Ohio
- Concord Township, Highland County, Ohio
- Concord Township, Lake County, Ohio
- Concord Township, Miami County, Ohio
- Concord Township, Ross County, Ohio
- Congress Township, Morrow County, Ohio
- Congress Township, Wayne County, Ohio
- Conneaut Township, Ashtabula County, Ohio (defunct)
- Copley Township, Summit County, Ohio
- Coventry Township, Summit County, Ohio
- Cranberry Township, Crawford County, Ohio
- Crane Township, Paulding County, Ohio
- Crane Township, Wyandot County, Ohio
- Crawford Township, Coshocton County, Ohio
- Crawford Township, Wyandot County, Ohio
- Crosby Township, Hamilton County, Ohio
- Cross Creek Township, Jefferson County, Ohio
- Cynthian Township, Shelby County, Ohio
Read more about this topic: List Of Townships In Ohio