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- Adams Township, Champaign County, Ohio
- Adams Township, Clinton County, Ohio
- Adams Township, Coshocton County, Ohio
- Adams Township, Darke County, Ohio
- Adams Township, Defiance County, Ohio
- Adams Township, Guernsey County, Ohio
- Adams Township, Lucas County, Ohio (defunct)
- Adams Township, Monroe County, Ohio
- Adams Township, Muskingum County, Ohio
- Adams Township, Seneca County, Ohio
- Adams Township, Washington County, Ohio
- Addison Township, Gallia County, Ohio
- Aid Township, Lawrence County, Ohio
- Alexander Township, Athens County, Ohio
- Allen Township, Darke County, Ohio
- Allen Township, Hancock County, Ohio
- Allen Township, Ottawa County, Ohio
- Allen Township, Union County, Ohio
- Amanda Township, Allen County, Ohio
- Amanda Township, Fairfield County, Ohio
- Amanda Township, Hancock County, Ohio
- Amboy Township, Fulton County, Ohio
- American Township, Allen County, Ohio
- Ames Township, Athens County, Ohio
- Amherst Township, Lorain County, Ohio
- Anderson Township, Hamilton County, Ohio
- Andover Township, Ashtabula County, Ohio
- Antrim Township, Wyandot County, Ohio
- Archer Township, Harrison County, Ohio
- Ashtabula Township, Ashtabula County, Ohio
- Athens Township, Athens County, Ohio
- Athens Township, Harrison County, Ohio
- Atwater Township, Portage County, Ohio
- Auburn Township, Crawford County, Ohio
- Auburn Township, Geauga County, Ohio
- Auburn Township, Tuscarawas County, Ohio
- Auglaize Township, Allen County, Ohio
- Auglaize Township, Paulding County, Ohio
- Augusta Township, Carroll County, Ohio
- Aurelius Township, Washington County, Ohio
- Aurora Township, Portage County, Ohio (defunct)
- Austinburg Township, Ashtabula County, Ohio
- Austintown Township, Mahoning County, Ohio
- Avon Township, Lorain County, Ohio (defunct)
Read more about this topic: List Of Townships In Ohio