- Dalton
- Damascus
- Danville
- Darbydale
- Darbyville
- Darrtown
- Day Heights
- Dayton
- De Graff
- Deer Park
- Deersville
- Defiance
- Delaware
- Delhi Hills
- Dellroy
- Delphos
- Delta
- Dennison
- Dent
- Derby
- Deshler
- Detroit-Shoreway
- Devola
- Dexter City
- Dillonvale
- Dillonvale
- Dola
- Donnelsville
- Dover
- Doylestown
- Dresden
- Drexel
- Dry Ridge
- Dry Run
- Dublin
- Duncan Falls
- Dundee
- Dunkirk
- Dunlap
- Dupont
