| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Roachester | city | Ohio | United States | 39.36 | -84.10 | 830 | |
| Roachton | city | Ohio | United States | 41.52 | -83.66 | 830 | |
| Road Fork | city | Ohio | United States | 39.67 | -81.31 | 830 | |
| Roads | city | Ohio | United States | 39.08 | -82.54 | 830 | |
| Roaming Shores | city | Ohio | United States | 41.64 | -80.82 | 853 | |
| Roanoake | city | Ohio | United States | 40.41 | -81.35 | 895 | |
| Robbins (historical) | city | Ohio | United States | 39.04 | -82.88 | 830 | |
| Roberts | city | Ohio | United States | 39.88 | -82.09 | 830 | |
| Roberts (historical) | city | Ohio | United States | 39.86 | -82.06 | 830 | |
| Roberts (historical) | city | Ohio | United States | 39.94 | -83.31 | 898 | |
| Robertsburg | city | Ohio | United States | 40.42 | -83.16 | 898 | |
| Robertsville | city | Ohio | United States | 40.76 | -81.19 | 1099 | |
| Robin Park | city | Ohio | United States | 41.29 | -82.24 | 830 | |
| Robinhood Hills | city | Ohio | United States | 39.31 | -84.39 | 885 | |
| Robins | city | Ohio | United States | 39.96 | -81.51 | 990 | |
| Robins Trace | city | Ohio | United States | 40.99 | -81.50 | 1095 | |
| Robinwood Estates | city | Ohio | United States | 40.96 | -81.46 | 1171 | |
| Robroy Estates | city | Ohio | United States | 39.91 | -83.23 | 898 | |
| Robs Trailer Park | city | Ohio | United States | 39.72 | -82.99 | 830 | |
| Robtown | city | Ohio | United States | 39.72 | -83.06 | 830 | |
| Robyville | city | Ohio | United States | 40.21 | -80.88 | 1108 | |
| Rochester | city | Ohio | United States | 41.13 | -82.31 | 918 | |
| Rochester | city | Ohio | United States | 39.83 | -81.52 | 997 | |
| Rock | city | Ohio | United States | 40.31 | -81.36 | 898 | |
| Rock Camp | city | Ohio | United States | 40.69 | -80.66 | 1099 | |
| Rock Camp | city | Ohio | United States | 38.53 | -82.55 | 830 | |
| Rock Canyon Park | city | Ohio | United States | 40.46 | -81.16 | 1128 | |
| Rock Creek | city | Ohio | United States | 41.66 | -80.86 | 830 | |
| Rock Cut | city | Ohio | United States | 40.07 | -81.98 | 830 | |
| Rock Haven Park | city | Ohio | United States | 40.06 | -82.23 | 830 | |
| Rock Hill | city | Ohio | United States | 40.14 | -81.11 | 1200 | |
| Rock Mill | city | Ohio | United States | 39.75 | -82.71 | 958 | |
| Rock Mills | city | Ohio | United States | 39.44 | -83.41 | 908 | |
| Rock Springs | city | Ohio | United States | 39.06 | -82.02 | 830 | |
| Rock Way | city | Ohio | United States | 39.93 | -83.88 | 895 | |
| Rockaway | city | Ohio | United States | 41.08 | -83.05 | 898 | |
| Rockbridge | city | Ohio | United States | 39.58 | -82.52 | 830 | |
| Rockdale | city | Ohio | United States | 39.43 | -84.46 | 830 | |
| Rockford | city | Ohio | United States | 40.48 | -81.31 | 1161 | |
| Rockford | city | Ohio | United States | 40.69 | -84.65 | 830 | |
| Rockhouse (historical) | city | Ohio | United States | 39.49 | -82.61 | 898 | |
| Rockland | city | Ohio | United States | 39.28 | -81.61 | 830 | |
| Rockledge Farms | city | Ohio | United States | 41.58 | -83.60 | 830 | |
| Rockport | city | Ohio | United States | 40.87 | -84.00 | 830 | |
| Rockport | city | Ohio | United States | 41.47 | -81.84 | 830 | |
| Rockport (historical) | city | Ohio | United States | 39.69 | -80.87 | 830 | |
| Rockport Subdivision | city | Ohio | United States | 41.46 | -81.94 | 830 | |
| Rockville | city | Ohio | United States | 38.62 | -83.27 | 830 | |
| Rockville | city | Ohio | United States | 40.69 | -81.51 | 918 | |
| Rockwell (historical) | city | Ohio | United States | 41.62 | -83.50 | 830 | |
| Rockwood | city | Ohio | United States | 38.43 | -82.44 | 830 | |
| Rockwood Park | city | Ohio | United States | 40.50 | -81.16 | 1223 | |
| Rocky Fork | city | Ohio | United States | 40.16 | -82.29 | 898 | |
| Rocky Fork Point | city | Ohio | United States | 39.19 | -83.49 | 898 | |
| Rocky Hill | city | Ohio | United States | 38.99 | -82.54 | 830 | |
| Rocky Ridge | city | Ohio | United States | 41.53 | -83.21 | 830 | |
| Rocky River | city | Ohio | United States | 41.48 | -81.84 | 830 | |
| Rodney | city | Ohio | United States | 38.85 | -82.30 | 830 | |
| Roe Corners | city | Ohio | United States | 40.19 | -84.73 | 1066 | |
| Rogers | city | Ohio | United States | 40.79 | -80.63 | 1092 | |
| Rohs Hill | city | Ohio | United States | 39.13 | -84.52 | 830 | |
| Rokeby Lock | city | Ohio | United States | 39.73 | -81.91 | 830 | |
| Rolandus | city | Ohio | United States | 38.96 | -81.82 | 830 | |
| Rolfe Mobile Home Park | city | Ohio | United States | 39.49 | -83.64 | 1017 | |
| Rollersville | city | Ohio | United States | 41.34 | -83.38 | 830 | |
| Rolling Greens | city | Ohio | United States | 40.95 | -81.49 | 1158 | |
| Rolling Greens Estates | city | Ohio | United States | 40.95 | -81.48 | 1190 | |
| Rolling Hill Acres | city | Ohio | United States | 39.29 | -82.15 | 830 | |
| Rolling Hills | city | Ohio | United States | 39.29 | -82.14 | 830 | |
| Rolling Hills Village | city | Ohio | United States | 40.80 | -81.56 | 1036 | |
| Rolling Homes | city | Ohio | United States | 40.69 | -81.19 | 1033 | |
| Rolling Knolls | city | Ohio | United States | 39.31 | -84.39 | 885 | |
| Rolling Knolls Estate | city | Ohio | United States | 39.21 | -84.42 | 830 | |
| Rolling Meadow Acres | city | Ohio | United States | 40.56 | -81.08 | 1026 | |
| Rolling Terrace Mobile Home Park | city | Ohio | United States | 39.95 | -83.87 | 997 | |
| Rolling Wheel Park | city | Ohio | United States | 41.27 | -81.84 | 1049 | |
| Rolling Woods | city | Ohio | United States | 39.30 | -84.39 | 830 | |
| Rome | city | Ohio | United States | 40.25 | -82.91 | 898 | |
| Rome | city | Ohio | United States | 41.60 | -80.87 | 856 | |
| Rome | city | Ohio | United States | 39.96 | -83.14 | 898 | |
| Rome | city | Ohio | United States | 40.93 | -82.53 | 1108 | |
| Rome | city | Ohio | United States | 38.45 | -82.36 | 830 | |
| Romohr Acres | city | Ohio | United States | 39.14 | -84.29 | 830 | |
| Rootstown | city | Ohio | United States | 41.10 | -81.24 | 1099 | |
| Roscoe | city | Ohio | United States | 40.28 | -81.88 | 830 | |
| Rose Addition | city | Ohio | United States | 39.92 | -81.43 | 997 | |
| Rose Farm | city | Ohio | United States | 39.74 | -82.08 | 830 | |
| Rose Garden Mobile Home Park | city | Ohio | United States | 39.97 | -83.84 | 944 | |
| Rose Hill | city | Ohio | United States | 40.31 | -84.73 | 1043 | |
| Rose Hill Heights | city | Ohio | United States | 39.95 | -82.82 | 853 | |
| Rose Lawn | city | Ohio | United States | 39.53 | -84.38 | 830 | |
| Rose Park | city | Ohio | United States | 41.19 | -80.96 | 905 | |
| Rosedale | city | Ohio | United States | 41.29 | -84.69 | 830 | |
| Rosedale | city | Ohio | United States | 40.08 | -83.45 | 997 | |
| Roseland | city | Ohio | United States | 40.79 | -82.54 | 1197 | |
| Roseland | city | Ohio | United States | 39.98 | -82.92 | 830 | |
| Roseland | city | Ohio | United States | 41.46 | -81.90 | 830 | |
| Roselawn | city | Ohio | United States | 39.20 | -84.46 | 830 | |
| Roselms | city | Ohio | United States | 41.02 | -84.42 | 830 | |
| Rosemont | city | Ohio | United States | 41.06 | -80.89 | 1049 | |
| Rosemoor | city | Ohio | United States | 39.63 | -83.67 | 1046 | |
| Rosemount | city | Ohio | United States | 38.79 | -82.98 | 830 | |
| Roseville | city | Ohio | United States | 39.81 | -82.07 | 830 | |
| Rosewood | city | Ohio | United States | 40.22 | -83.96 | 1099 | |
| Rosewood Estates | city | Ohio | United States | 41.44 | -81.91 | 830 | |
| Ross | city | Ohio | United States | 39.31 | -84.65 | 830 | |
| Rossburg | city | Ohio | United States | 40.28 | -84.64 | 1030 | |
| Rossburg | city | Ohio | United States | 39.31 | -84.12 | 830 | |
| Rosseau | city | Ohio | United States | 39.57 | -81.95 | 830 | |
| Rossford | city | Ohio | United States | 41.61 | -83.56 | 830 | |
| Rossmoyne | city | Ohio | United States | 39.21 | -84.39 | 830 | |
| Rossville | city | Ohio | United States | 40.16 | -84.24 | 898 | |
| Roswell | city | Ohio | United States | 40.48 | -81.35 | 997 | |
| Round Bottom | city | Ohio | United States | 39.74 | -80.97 | 1197 | |
| Roundhead | city | Ohio | United States | 40.56 | -83.84 | 997 | |
| Rousculp | city | Ohio | United States | 40.67 | -84.08 | 948 | |
| Rowdyville (historical) | city | Ohio | United States | 40.10 | -84.34 | 944 | |
| Rowenton | city | Ohio | United States | 41.68 | -80.72 | 1003 | |
| Rowland (historical) | city | Ohio | United States | 39.74 | -81.77 | 830 | |
| Rowlesville | city | Ohio | United States | 39.01 | -82.28 | 830 | |
| Rowsburg | city | Ohio | United States | 40.86 | -82.16 | 1049 | |
| Roxabell | city | Ohio | United States | 39.38 | -83.19 | 830 | |
| Roxanna | city | Ohio | United States | 39.58 | -84.02 | 830 | |
| Roxbury | city | Ohio | United States | 39.52 | -81.75 | 830 | |
| Royal | city | Ohio | United States | 39.31 | -82.57 | 830 | |
| Royal Coach Estates | city | Ohio | United States | 40.31 | -83.68 | 1669 | |
| Royal Crest Mobile Home Park | city | Ohio | United States | 40.56 | -84.19 | 898 | |
| Royal Elm | city | Ohio | United States | 40.01 | -82.79 | 1007 | |
| Royal Forest | city | Ohio | United States | 41.46 | -81.93 | 830 | |
| Royal Lane Park | city | Ohio | United States | 40.44 | -81.38 | 895 | |
| Royal Mobile Park | city | Ohio | United States | 40.89 | -81.41 | 1181 | |
| Royal Springs Estates | city | Ohio | United States | 39.58 | -84.24 | 898 | |
| Royal Woods | city | Ohio | United States | 41.44 | -81.96 | 830 | |
| Royalton | city | Ohio | United States | 39.73 | -82.77 | 990 | |
| Royersville | city | Ohio | United States | 38.61 | -82.68 | 830 |