Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Barton Post Office | Post Office | 241 | Belmont | 40 06 25 N | 080 50 29 W |
| Barton School | School | 320 | Cuyahoga | 41 26 15 N | 081 32 13 W |
| Barton School (historical) | School | 256 | Gallia | 39 00 13 N | 082 15 08 W |
| Barton-Bradley Recreation Field | Park | 228 | Cuyahoga | 41 24 08 N | 081 57 49 W |
| Bartramville | Populated Place | 175 | Lawrence | 38 29 33 N | 082 23 05 W |
| Barwyn Acres | Populated Place | 251 | Hamilton | 39 13 38 N | 084 22 22 W |
| Bascom | Populated Place | 236 | Seneca | 41 07 58 N | 083 17 07 W |
| Bascom Post Office | Post Office | 236 | Seneca | 41 08 00 N | 083 17 05 W |
| Bascom United Methodist Church | Church | 238 | Seneca | 41 07 54 N | 083 16 53 W |
| Base Chapel | Church | 322 | Clinton | 39 25 29 N | 083 47 09 W |
| Baseline Cemetery | Cemetery | 285 | Crawford | 40 59 36 N | 083 03 35 W |
| Bashan | Populated Place | 225 | Meigs | 39 02 36 N | 081 51 54 W |
| Bashan Post Office (historical) | Post Office | 225 | Meigs | 39 02 35 N | 081 51 54 W |
| Bashford Hall | Building | 280 | Delaware | 40 17 46 N | 083 04 28 W |
| Bashore Airport | Airport | 285 | Miami | 40 02 45 N | 084 20 04 W |
| Basinger Cemetery | Cemetery | 265 | Warren | 39 16 53 N | 084 07 52 W |
| Bass Cemetery | Cemetery | 359 | Darke | 40 03 50 N | 084 47 52 W |
| Bass Haven | Locale | 174 | Ottawa | 41 32 00 N | 082 48 28 W |
| Bass Island | Island | 149 | Hamilton | 39 08 06 N | 084 20 54 W |
| Bass Islands | Island | 176 | Ottawa | 41 41 00 N | 082 48 45 W |
| Bass Lake | Lake | 362 | Geauga | 41 36 01 N | 081 10 48 W |
| Bass Lake | Lake | 242 | Greene | 39 49 57 N | 084 03 02 W |
| Bass Lake | Reservoir | 263 | Huron | 41 05 36 N | 082 44 06 W |
| Bass Lake Dam | Dam | 263 | Huron | 41 05 36 N | 082 44 06 W |
| Bass Lakes | Lake | 295 | Wayne | 40 57 57 N | 081 43 47 W |
| Bass Landing | Populated Place | 265 | Mercer | 40 30 38 N | 084 31 36 W |
| Bass Playground | Park | 188 | Lucas | 41 38 58 N | 083 34 07 W |
| Bassage Lake Dam | Dam | 321 | Jefferson | 40 14 54 N | 080 52 35 W |
| Bassage Lake Dam | Reservoir | 321 | Jefferson | 40 14 54 N | 080 52 35 W |
| Basset Cemetery | Cemetery | 352 | Knox | 40 31 22 N | 082 29 55 W |
| Bassett (historical) | Populated Place | 215 | Wood | 41 12 43 N | 083 40 25 W |
| Bassett Cemetery | Cemetery | 294 | Athens | 39 16 39 N | 082 06 21 W |
| Bassett Elementary School | School | 212 | Cuyahoga | 41 27 23 N | 081 56 35 W |
| Bassinger Ditch | Canal | 231 | Putnam | 40 57 23 N | 083 55 37 W |
| Basswood School (historical) | School | 291 | Crawford | 40 58 54 N | 082 44 38 W |
| Bastel School (historical) | School | 228 | Van Wert | 40 55 03 N | 084 26 14 W |
| Bataan Memorial Elementary School | School | 177 | Ottawa | 41 30 20 N | 082 57 01 W |
| Batavia | Populated Place | 181 | Clermont | 39 04 37 N | 084 10 37 W |
| Batavia Branch Clermont County Public Library | Building | 185 | Clermont | 39 04 27 N | 084 10 39 W |
| Batavia Elementary School | School | 180 | Clermont | 39 04 30 N | 084 10 47 W |
| Batavia First Presbyterian Church | Church | 183 | Clermont | 39 04 36 N | 084 10 32 W |
| Batavia First United Methodist Church | Church | 181 | Clermont | 39 04 38 N | 084 10 35 W |
| Batavia High School | School | 208 | Clermont | 39 04 10 N | 084 10 55 W |
| Batavia Post Office | Post Office | 182 | Clermont | 39 04 35 N | 084 10 35 W |
| Batavia Township Hall | Building | 268 | Clermont | 39 03 08 N | 084 13 34 W |
| Batchelder Hall | Building | 206 | Wood | 41 22 39 N | 083 37 54 W |
| Batchlet Run | Stream | | Hardin | 40 38 53 N | 083 38 32 W |
| Batemantown | Populated Place | 351 | Knox | 40 31 33 N | 082 35 46 W |
| Batemantown Post Office (historical) | Post Office | 351 | Knox | 40 31 35 N | 082 35 45 W |
| Bates | Populated Place | 188 | Wood | 41 35 26 N | 083 34 42 W |
| Bates Cemetery | Cemetery | 227 | Ashtabula | 41 49 19 N | 080 51 04 W |
| Bates Cemetery | Cemetery | 299 | Athens | 39 15 50 N | 082 05 33 W |
| Bates Church | Church | 299 | Athens | 39 15 50 N | 082 05 33 W |
| Bates Corners | Populated Place | 314 | Summit | 41 03 02 N | 081 38 16 W |
| Bates Creek | Stream | | Fulton | 41 34 08 N | 084 20 47 W |
| Bates Creek | Stream | | Lake | 41 39 53 N | 081 07 03 W |
| Bates Hall | Building | 384 | Portage | 41 18 38 N | 081 08 38 W |
| Bates Hill Church | Church | 318 | Noble | 39 52 09 N | 081 21 41 W |
| Bates School | School | 199 | Cuyahoga | 41 28 21 N | 081 52 07 W |
| Bates School (historical) | School | 304 | Highland | 39 14 11 N | 083 34 21 W |
| Bateson School (historical) | School | 298 | Hardin | 40 41 13 N | 083 40 25 W |
| Batesville | Populated Place | 277 | Noble | 39 54 51 N | 081 16 52 W |
| Batesville Post Office | Post Office | 280 | Noble | 39 54 50 N | 081 16 54 W |
| Bath | Populated Place | 342 | Summit | 41 11 20 N | 081 38 10 W |
| Bath Cemetery | Cemetery | 269 | Greene | 39 49 34 N | 084 04 57 W |
| Bath Center | Populated Place | 300 | Summit | 41 10 07 N | 081 38 12 W |
| Bath Center Cemetery | Cemetery | 305 | Summit | 41 10 08 N | 081 38 09 W |
| Bath Church | Church | 272 | Greene | 39 49 37 N | 084 04 60 W |
| Bath Elementary School | School | 269 | Allen | 40 46 31 N | 084 03 08 W |
| Bath Elementary School | School | 305 | Summit | 41 10 10 N | 081 38 16 W |
| Bath Golf Club | Locale | 317 | Summit | 41 08 54 N | 081 40 59 W |
| Bath High School | School | 269 | Allen | 40 46 23 N | 084 03 08 W |
| Bath Middle School | School | 270 | Allen | 40 46 25 N | 084 03 17 W |
| Bath Pond | Lake | 306 | Summit | 41 10 52 N | 081 39 17 W |
| Bath Post Office | Post Office | 342 | Summit | 41 11 20 N | 081 38 09 W |
| Bath Township Office | Building | 262 | Greene | 39 49 27 N | 083 59 56 W |
| Bath Township Park | Park | 263 | Greene | 39 49 21 N | 083 59 57 W |
| Bath United Church of Christ | Church | | Summit | 41 10 06 N | 081 38 29 W |
| Batson | Populated Place | 231 | Paulding | 41 01 06 N | 084 44 42 W |
| Batson Post Office (historical) | Post Office | 231 | Paulding | 41 01 05 N | 084 44 40 W |
| Battelle Darby Creek Metropolitan Park | Park | 266 | Franklin | 39 52 29 N | 083 12 56 W |
| Battelle Fine Arts Center | Building | 258 | Franklin | 40 07 28 N | 082 56 14 W |
| Battelle Hall | Building | 238 | Franklin | 39 57 23 N | 082 56 13 W |
| Battelle Memorial Institute | School | 223 | Franklin | 39 59 25 N | 083 01 10 W |
| Battelle Memorial Institute | School | 277 | Madison | 39 58 03 N | 083 14 60 W |
| Battelle Riverfront Park | Park | 220 | Franklin | 39 57 52 N | 083 00 19 W |
| Battenhouse Ditch | Canal | 235 | Lorain | 41 21 53 N | 082 11 24 W |
| Batterson Cemetery | Cemetery | 184 | Scioto | 38 48 08 N | 082 50 16 W |
| Battery Park | Park | 177 | Erie | 41 27 39 N | 082 42 08 W |
| Battery Park Marina | Locale | 174 | Erie | 41 27 45 N | 082 42 06 W |
| Battle Island Monument | Park | 257 | Wyandot | 40 51 43 N | 083 16 02 W |
| Battle Ridge Cemetery | Cemetery | 276 | Guernsey | 40 00 54 N | 081 30 50 W |
| Battle Run | Stream | | Marion | 40 26 47 N | 083 11 24 W |
| Battlesburg | Populated Place | 342 | Stark | 40 41 53 N | 081 22 12 W |
| Battlesburg Cemetery | Cemetery | 345 | Stark | 40 41 54 N | 081 23 01 W |
| Battlesburg Post Office (historical) | Post Office | 346 | Stark | 40 41 55 N | 081 22 14 W |
| Bauer Elementary School | School | 284 | Montgomery | 39 39 04 N | 084 13 32 W |
| Bauer Landing Strip | Airport | 219 | Paulding | 41 08 56 N | 084 22 27 W |
| Baugher Cemetery | Cemetery | 293 | Fairfield | 39 47 02 N | 082 38 10 W |
| Baugher Cemetery | Cemetery | 256 | Seneca | 41 00 55 N | 083 11 24 W |
| Baughman Cemetery | Cemetery | 316 | Stark | 40 44 33 N | 081 33 23 W |
| Baughman Cemetery | Cemetery | 259 | Wyandot | 40 52 19 N | 083 23 54 W |
| Baughman Creek | Stream | | Trumbull | 41 26 11 N | 080 54 00 W |
| Baughman Ditch | Canal | 306 | Logan | 40 27 19 N | 083 59 53 W |
| Baughman Run | Stream | | Muskingum | 39 50 13 N | 081 59 26 W |
| Baughman Run | Stream | | Wyandot | 40 53 34 N | 083 22 11 W |
| Baughman School | School | 335 | Wayne | 40 54 02 N | 081 43 49 W |
| Baughman School (historical) | School | 278 | Fairfield | 39 52 15 N | 082 33 60 W |
| Baughman School (historical) | School | 324 | Logan | 40 17 57 N | 083 59 28 W |
| Baughn Cemetery | Cemetery | 311 | Union | 40 19 31 N | 083 27 19 W |