Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Rocky Run | Stream | | Athens | 39 18 17 N | 081 56 58 W |
| Rocky Run | Stream | | Brown | 38 52 27 N | 083 50 04 W |
| Rocky Run | Stream | | Clermont | 39 08 23 N | 084 08 08 W |
| Rocky Run | Stream | | Gallia | 38 45 53 N | 082 12 43 W |
| Rocky Run | Stream | | Jefferson | 40 34 22 N | 080 40 05 W |
| Rocky Run | Stream | | Miami | 40 00 51 N | 084 19 54 W |
| Rocky Run | Stream | | Noble | 39 37 51 N | 081 20 06 W |
| Rocky Run | Stream | | Preble | 39 42 42 N | 084 37 11 W |
| Rocky Run School (historical) | School | 275 | Licking | 40 13 22 N | 082 14 12 W |
| Rocky Spring Cemetery | Cemetery | 280 | Highland | 39 16 46 N | 083 24 42 W |
| Rocky Spring Presbyterian Church (historical) | Church | 276 | Highland | 39 16 44 N | 083 24 42 W |
| Rocky Spring School (historical) | School | 257 | Highland | 39 16 25 N | 083 25 03 W |
| Rockyhill Post Office (historical) | Post Office | 219 | Jackson | 38 59 20 N | 082 32 40 W |
| Rockyridge Post Office | Post Office | 184 | Ottawa | 41 31 55 N | 083 12 46 W |
| Rod Lake | Reservoir | 283 | Jefferson | 40 32 12 N | 080 50 29 W |
| Rod Lake Dam | Dam | 283 | Jefferson | 40 32 12 N | 080 50 29 W |
| Rodenbaugh School (historical) | School | 230 | Paulding | 41 00 14 N | 084 42 29 W |
| Rodger O Borror Elementary School | School | 311 | Clinton | 39 26 51 N | 083 50 06 W |
| Rodgers Chapel African Methodist Episcopal Church | Church | 296 | Fayette | 39 32 16 N | 083 26 34 W |
| Rodgers Lake | Lake | 257 | Wyandot | 40 57 02 N | 083 08 43 W |
| Rodgers Quadrangle | Park | 208 | Wood | 41 22 31 N | 083 38 11 W |
| Rodman Hall | Building | 326 | Cuyahoga | 41 29 28 N | 081 31 52 W |
| Rodman Playhouse | Building | 367 | Stark | 40 54 22 N | 081 06 22 W |
| Rodman Public Library | Building | 347 | Stark | 40 55 08 N | 081 06 08 W |
| Rodney | Populated Place | 207 | Gallia | 38 50 57 N | 082 18 15 W |
| Rodney Run | Stream | | Coshocton | 40 17 30 N | 081 37 40 W |
| Rodney United Methodist Church | Church | 207 | Gallia | 38 50 58 N | 082 18 20 W |
| Roe Corners | Populated Place | 322 | Darke | 40 11 35 N | 084 43 40 W |
| Roebuck Cemetery | Cemetery | 252 | Mercer | 40 38 07 N | 084 32 42 W |
| Roebuck Cemetery | Cemetery | 245 | Mercer | 40 41 31 N | 084 36 41 W |
| Roebuck School (historical) | School | 320 | Logan | 40 30 34 N | 083 47 22 W |
| Roebuck School (historical) | School | 253 | Mercer | 40 37 47 N | 084 32 32 W |
| Roebuck School (historical) | School | 224 | Paulding | 41 02 54 N | 084 36 06 W |
| Roehm Junior High School | School | 242 | Cuyahoga | 41 22 17 N | 081 50 29 W |
| Roesch Library | Building | 240 | Montgomery | 39 44 24 N | 084 10 44 W |
| Roettger Field | Park | 165 | Hamilton | 39 13 42 N | 084 27 16 W |
| Roger Young Memorial Park | Park | 183 | Sandusky | 41 20 02 N | 083 07 11 W |
| Rogers | Populated Place | 313 | Columbiana | 40 47 29 N | 080 37 34 W |
| Rogers Airport | Airport | 218 | Defiance | 41 19 40 N | 084 33 28 W |
| Rogers Bar | Bar | 191 | Monroe | 39 43 08 N | 080 49 56 W |
| Rogers Blockhouse (historical) | Military (Historical) | 291 | Miami | 40 04 38 N | 084 08 07 W |
| Rogers Cemetery | Cemetery | 279 | Fayette | 39 25 00 N | 083 22 29 W |
| Rogers Cemetery | Cemetery | 348 | Highland | 39 06 34 N | 083 39 14 W |
| Rogers Cemetery | Cemetery | 299 | Lawrence | 38 42 22 N | 082 40 03 W |
| Rogers Cemetery | Cemetery | 198 | Scioto | 38 51 06 N | 082 50 06 W |
| Rogers Cemetery | Cemetery | 298 | Williams | 41 38 58 N | 084 47 31 W |
| Rogers Corner Shopping Center | Locale | 287 | Franklin | 40 03 13 N | 082 50 35 W |
| Rogers Elementary School | School | 324 | Columbiana | 40 47 01 N | 080 37 27 W |
| Rogers Heliport | Airport | 239 | Montgomery | 39 48 00 N | 084 07 15 W |
| Rogers High School | School | | Lucas | 41 38 46 N | 083 40 26 W |
| Rogers Hollow | Valley | | Adams | 38 48 35 N | 083 19 03 W |
| Rogers Lake | Lake | 349 | Morrow | 40 28 04 N | 082 42 14 W |
| Rogers Landing | Locale | 151 | Adams | 38 38 54 N | 083 38 28 W |
| Rogers McElwain Cemetery | Cemetery | 290 | Fayette | 39 25 10 N | 083 22 13 W |
| Rogers Park | Park | 191 | Lucas | 41 38 30 N | 083 40 32 W |
| Rogers Road Field | Park | 206 | Cuyahoga | 41 34 08 N | 081 24 56 W |
| Rogers Run | Stream | | Adams | 38 48 31 N | 083 18 45 W |
| Rogers School | School | 257 | Allen | 40 44 05 N | 084 07 11 W |
| Rogers School (historical) | School | 286 | Seneca | 41 02 13 N | 082 56 21 W |
| Rogers Volney Junior High School | School | 312 | Mahoning | 41 04 35 N | 080 42 04 W |
| Rogue Hollow | Valley | | Wayne | 40 56 20 N | 081 40 34 W |
| Rohn Cemetery | Cemetery | 215 | Defiance | 41 17 47 N | 084 15 52 W |
| Rohrer Airport | Airport | 244 | Warren | 39 17 03 N | 084 12 41 W |
| Rohrers Farm Park | Park | 238 | Montgomery | 39 47 53 N | 084 08 28 W |
| Rohrers Island | Island | 235 | Montgomery | 39 47 29 N | 084 06 42 W |
| Rohrs Lake | Reservoir | 335 | Ashland | 41 01 12 N | 082 20 12 W |
| Rohrs Lake Dam | Dam | 335 | Ashland | 41 01 12 N | 082 20 12 W |
| Rohs Hill | Populated Place | 253 | Hamilton | 39 07 47 N | 084 31 20 W |
| Rokeby Lock | Populated Place | 212 | Morgan | 39 43 55 N | 081 54 18 W |
| Rokeby Lock Post Office (historical) | Post Office | 210 | Morgan | 39 43 55 N | 081 54 19 W |
| Rolandus | Populated Place | 175 | Meigs | 38 57 50 N | 081 49 29 W |
| Rolandus Post Office (historical) | Post Office | 175 | Meigs | 38 57 50 N | 081 49 29 W |
| Roley School (historical) | School | 325 | Licking | 39 56 13 N | 082 24 32 W |
| Roll Hill Elementary School | School | 246 | Hamilton | 39 09 12 N | 084 33 51 W |
| Rollandia Golf Course | Locale | 302 | Greene | 39 40 11 N | 084 06 20 W |
| Roller Creek | Stream | | Van Wert | 40 47 44 N | 084 39 04 W |
| Roller School (historical) | School | 249 | Van Wert | 40 44 15 N | 084 27 21 W |
| Rollersville | Populated Place | 209 | Sandusky | 41 20 27 N | 083 22 42 W |
| Rollersville Post Office (historical) | Post Office | 209 | Sandusky | 41 20 25 N | 083 22 40 W |
| Rolling Acres Alliance Church | Church | 297 | Summit | 41 02 37 N | 081 34 40 W |
| Rolling Acres Golf Course | Locale | 332 | Ashland | 41 03 19 N | 082 18 15 W |
| Rolling Acres Mall Shopping Center | Locale | 328 | Summit | 41 03 00 N | 081 35 02 W |
| Rolling Brook Farm (historical) | Locale | 268 | Licking | 40 04 25 N | 082 13 56 W |
| Rolling Field School | School | 280 | Montgomery | 39 42 13 N | 084 07 16 W |
| Rolling Green Golf Course | Locale | 335 | Stark | 40 53 25 N | 081 30 54 W |
| Rolling Green Memorial Cemetery | Cemetery | 352 | Geauga | 41 33 31 N | 081 20 23 W |
| Rolling Hill Acres (subdivision) | Populated Place | 228 | Athens | 39 17 20 N | 082 08 50 W |
| Rolling Hills | Populated Place | 217 | Athens | 39 17 17 N | 082 08 39 W |
| Rolling Hills Baptist Church | Church | 214 | Butler | 39 19 29 N | 084 33 37 W |
| Rolling Hills Country Club | Locale | 193 | Butler | 39 19 29 N | 084 33 14 W |
| Rolling Hills Elementary School | School | 339 | Clark | 39 59 36 N | 083 45 05 W |
| Rolling Hills Girl Scout Camp | Locale | 290 | Miami | 40 02 18 N | 084 22 10 W |
| Rolling Hills Park | Park | 353 | Medina | 41 15 18 N | 081 49 43 W |
| Rolling Knolls Estate | Populated Place | 247 | Hamilton | 39 12 27 N | 084 25 20 W |
| Rolling Meadow Acres (subdivision) | Populated Place | 345 | Carroll | 40 33 20 N | 081 04 59 W |
| Rolling Meadows Golf Course | Locale | 299 | Union | 40 10 08 N | 083 16 03 W |
| Rolling Terrace Mobile Home Park | Populated Place | 321 | Clark | 39 57 05 N | 083 52 09 W |
| Roman D Miller Farm Cemetery | Cemetery | 336 | Holmes | 40 31 08 N | 081 44 27 W |
| Roman Orthodox Church | Church | 269 | Trumbull | 41 14 05 N | 080 48 47 W |
| Roman Raber Farm Cemetery | Cemetery | 390 | Holmes | 40 34 06 N | 081 45 10 W |
| Romar Plaza Shopping Center | Locale | 271 | Trumbull | 41 12 36 N | 080 44 47 W |
| Rome | Populated Place | 259 | Ashtabula | 41 36 17 N | 080 51 55 W |
| Rome | Populated Place | 294 | Delaware | 40 14 47 N | 082 54 42 W |
| Rome | Populated Place | 281 | Franklin | 39 57 23 N | 083 08 32 W |
| Rome | Populated Place | 176 | Lawrence | 38 26 45 N | 082 21 50 W |
| Rome | Populated Place | 338 | Richland | 40 55 35 N | 082 31 49 W |
| Rome Boat Launch Ramp | Locale | 153 | Adams | 38 39 48 N | 083 22 54 W |
| Rome Center Cemetery | Cemetery | 261 | Ashtabula | 41 36 20 N | 080 51 30 W |
| Rome Post Office | Post Office | 260 | Ashtabula | 41 36 20 N | 080 51 54 W |
| Rome Station | Locale | 271 | Ashtabula | 41 36 18 N | 080 50 43 W |