| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Gabels Corner | city | Ohio | United States | 41.33 | -83.20 | 830 | |
| Gage | city | Ohio | United States | 38.80 | -82.40 | 830 | |
| Gageville | city | Ohio | United States | 41.85 | -80.67 | 853 | |
| Gahanna | city | Ohio | United States | 40.02 | -82.88 | 830 | |
| Galatea | city | Ohio | United States | 41.18 | -83.64 | 830 | |
| Galaxy Acres | city | Ohio | United States | 39.24 | -84.58 | 830 | |
| Galena | city | Ohio | United States | 40.22 | -82.88 | 898 | |
| Galetown | city | Ohio | United States | 41.27 | -83.00 | 830 | |
| Galion | city | Ohio | United States | 40.73 | -82.79 | 1145 | |
| Gall (historical) | city | Ohio | United States | 39.09 | -83.46 | 898 | |
| Gallia | city | Ohio | United States | 38.83 | -82.52 | 830 | |
| Gallipolis | city | Ohio | United States | 38.81 | -82.20 | 830 | |
| Galloway | city | Ohio | United States | 39.91 | -83.16 | 898 | |
| Galloway Ridge | city | Ohio | United States | 39.96 | -83.16 | 898 | |
| Gallup | city | Ohio | United States | 41.19 | -84.03 | 830 | |
| Gambier | city | Ohio | United States | 40.38 | -82.40 | 994 | |
| Gambrinus | city | Ohio | United States | 40.77 | -81.42 | 1095 | |
| Ganges | city | Ohio | United States | 40.91 | -82.56 | 1095 | |
| Gano | city | Ohio | United States | 39.30 | -84.41 | 830 | |
| Garden | city | Ohio | United States | 39.21 | -81.98 | 830 | |
| Garden | city | Ohio | United States | 41.60 | -83.80 | 830 | |
| Garden Acres | city | Ohio | United States | 39.93 | -83.74 | 1023 | |
| Garden City | city | Ohio | United States | 38.71 | -82.85 | 830 | |
| Garden City Mobile Home Park | city | Ohio | United States | 40.85 | -80.82 | 1197 | |
| Garden Isle | city | Ohio | United States | 41.01 | -82.02 | 905 | |
| Garden Valley | city | Ohio | United States | 41.48 | -81.64 | 830 | |
| Gardner | city | Ohio | United States | 40.98 | -82.74 | 961 | |
| Gardner Terrace | city | Ohio | United States | 38.45 | -82.34 | 830 | |
| Garfield | city | Ohio | United States | 39.12 | -82.62 | 830 | |
| Garfield | city | Ohio | United States | 40.92 | -80.96 | 1177 | |
| Garfield Heights | city | Ohio | United States | 41.42 | -81.61 | 948 | |
| Garland | city | Ohio | United States | 39.93 | -84.37 | 997 | |
| Garrettsville | city | Ohio | United States | 41.28 | -81.10 | 1003 | |
| Gaslight Village Mobile Home Park | city | Ohio | United States | 41.10 | -81.46 | 1040 | |
| Gast Corner | city | Ohio | United States | 40.45 | -83.22 | 898 | |
| Gasville | city | Ohio | United States | 39.53 | -81.32 | 830 | |
| Gates Mills | city | Ohio | United States | 41.52 | -81.40 | 830 | |
| Gath | city | Ohio | United States | 39.06 | -83.80 | 898 | |
| Gatton Rock | city | Ohio | United States | 40.60 | -82.47 | 1181 | |
| Gavers | city | Ohio | United States | 40.71 | -80.81 | 997 | |
| Gaysport | city | Ohio | United States | 39.80 | -81.89 | 830 |