- Gahanna
- Galena
- Galion
- Gallipolis
- Gambier
- Garfield Heights
- Garrettsville
- Gates Mills
- Geneva
- Geneva-on-the-Lake
- Genoa
- Genoa
- Georgetown
- Germantown
- Gettysburg
- Gibsonburg
- Gilboa
- Girard
- Glandorf
- Glencoe
- Glendale
- Glenford
- Glenmont
- Glenmoor
- Glenville
- Glenwillow
- Gloria Glens Park
- Glouster
- Gnadenhutten
- Golf Manor
- Good Hope
- Gordon
- Grafton
- Grand River
- Grandview
- Grandview Heights
- Granville
- Granville South
- Gratiot
- Gratis
- Graysville
- Green
- Green Camp
- Green Meadows
- Green Springs
- Greenhills
- Greensburg
- Greentown
- Groesbeck
- Grove City
- Groveport
- Grover Hill
