Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Bibler Cemetery | Cemetery | 243 | Wyandot | 40 57 50 N | 083 13 43 W |
| Bibleway Christian Academy | School | 186 | Lucas | 41 39 57 N | 083 33 21 W |
| Bibleway Christian Center | Church | 187 | Lucas | 41 39 41 N | 083 33 59 W |
| Bibleway Church | Church | 186 | Lucas | 41 40 02 N | 083 33 21 W |
| Bibleway Sons of God Church | Church | 232 | Franklin | 39 56 06 N | 083 03 23 W |
| Bice School (historical) | School | 254 | Allen | 40 42 00 N | 084 16 47 W |
| Bicentennial Park | Park | 358 | Richland | 40 41 30 N | 082 35 44 W |
| Bicentennial Park | Park | 322 | Summit | 41 08 00 N | 081 37 40 W |
| Bicentennial Park | Park | 194 | Wood | 41 32 28 N | 083 37 36 W |
| Bicentennial Park | Park | 253 | Wyandot | 40 50 15 N | 083 16 56 W |
| Bicentennial Riverfront Park | Park | 216 | Franklin | 39 57 23 N | 083 00 18 W |
| Bickel Cemetery | Cemetery | 277 | Fairfield | 39 52 23 N | 082 37 58 W |
| Bickel School (historical) | School | 332 | Darke | 40 09 55 N | 084 47 20 W |
| Bickford School (historical) | School | 208 | Henry | 41 19 37 N | 084 03 25 W |
| Bickham Bridge | Bridge | 305 | Logan | 40 28 27 N | 083 50 25 W |
| Biddinger School (historical) | School | 225 | Hamilton | 39 17 27 N | 084 47 47 W |
| Biddle (historical) | Populated Place | 325 | Crawford | 40 50 25 N | 082 49 06 W |
| Biddle Cemetery | Cemetery | 332 | Crawford | 40 49 38 N | 082 48 32 W |
| Biddle Church | Church | 332 | Crawford | 40 49 44 N | 082 48 33 W |
| Biddle Creek | Stream | | Athens | 39 16 20 N | 082 09 05 W |
| Biddle Hall | Building | 198 | Athens | 39 19 33 N | 082 05 52 W |
| Biddle Mills Post Office (historical) | Post Office | 325 | Crawford | 40 50 25 N | 082 49 05 W |
| Biddle Shop-Ette Shopping Center | Locale | 149 | Hamilton | 39 07 33 N | 084 33 12 W |
| Biddulph Plaza Shopping Center | Locale | 230 | Cuyahoga | 41 25 54 N | 081 43 56 W |
| Bide-A-Wee | Building | 168 | Lawrence | 38 31 59 N | 082 40 53 W |
| Bidwell | Populated Place | 208 | Gallia | 38 55 07 N | 082 17 57 W |
| Bidwell Ditch | Canal | 283 | Madison | 40 00 26 N | 083 16 33 W |
| Bidwell Elsey Ditch | Canal | 286 | Madison | 40 06 04 N | 083 16 60 W |
| Bidwell Post Office | Post Office | 207 | Gallia | 38 55 05 N | 082 17 60 W |
| Bidwell-Porter Elementary School | School | 213 | Gallia | 38 55 25 N | 082 17 22 W |
| Bieber (subdivision) | Populated Place | 185 | Wood | 41 37 02 N | 083 27 36 W |
| Biehn Cemetery | Cemetery | 295 | Brown | 38 59 21 N | 083 47 01 W |
| Bieler Run | Stream | | Columbiana | 40 42 30 N | 080 31 54 W |
| Bierce Library | Building | 325 | Summit | 41 04 37 N | 081 30 36 W |
| Biers Cemetery | Cemetery | 227 | Ross | 39 22 21 N | 083 05 07 W |
| Biers Run | Stream | | Ross | 39 21 26 N | 083 03 55 W |
| Big 4 Church | Church | 258 | Gallia | 38 36 14 N | 082 13 01 W |
| Big Bailey Run | Stream | | Athens | 39 24 48 N | 082 07 05 W |
| Big Beaver Creek | Stream | | Gallia | 38 50 45 N | 082 23 22 W |
| Big Beaver Creek | Stream | | Pike | 39 00 47 N | 083 02 50 W |
| Big Bend | Bend | 257 | Miami | 40 01 41 N | 084 20 03 W |
| Big Bend Golf Course | Locale | 259 | Tuscarawas | 40 23 53 N | 081 21 10 W |
| Big Bend School (historical) | School | 253 | Tuscarawas | 40 24 51 N | 081 21 47 W |
| Big Bottom Run | Stream | | Morgan | 39 44 56 N | 081 54 50 W |
| Big Bottom School (historical) | School | 201 | Morgan | 39 31 48 N | 081 46 05 W |
| Big Bottom State Memorial Park | Park | 200 | Morgan | 39 32 00 N | 081 46 26 W |
| Big Branch | Stream | | Highland | 39 17 43 N | 083 27 30 W |
| Big Branch Church | Church | 179 | Lawrence | 38 27 08 N | 082 28 22 W |
| Big Branch Creek | Stream | | Lawrence | 38 26 07 N | 082 27 42 W |
| Big Cave Run | Stream | | Preble | 39 32 43 N | 084 38 03 W |
| Big Cave School (historical) | School | 321 | Preble | 39 35 20 N | 084 41 07 W |
| Big Creek | Stream | | Cuyahoga | 41 26 45 N | 081 41 09 W |
| Big Creek | Stream | | Gallia | 38 35 55 N | 082 15 50 W |
| Big Creek | Stream | | Geauga | 41 42 26 N | 081 13 48 W |
| Big Creek | Stream | | Henry | 41 24 56 N | 083 55 11 W |
| Big Creek Elementary School | School | 258 | Cuyahoga | 41 22 02 N | 081 48 32 W |
| Big Creek Metro Reservation | Park | 245 | Cuyahoga | 41 21 20 N | 081 50 14 W |
| Big Creek Parkway | Park | 233 | Cuyahoga | 41 24 49 N | 081 45 16 W |
| Big Creek Reservation | Park | 215 | Cuyahoga | 41 26 41 N | 081 45 13 W |
| Big Darby Cemetery | Cemetery | 284 | Madison | 40 02 35 N | 083 15 45 W |
| Big Darby Church | Church | 282 | Madison | 40 02 34 N | 083 15 49 W |
| Big Darby Creek | Stream | | Pickaway | 39 36 50 N | 082 57 45 W |
| Big Doney Hollow | Valley | | Scioto | 38 36 19 N | 082 47 18 W |
| Big Four Cemetery | Cemetery | 262 | Gallia | 38 36 16 N | 082 13 01 W |
| Big Four Hill | Summit | 268 | Gallia | 38 36 24 N | 082 13 07 W |
| Big Four Hollow | Valley | | Vinton | 39 21 46 N | 082 18 54 W |
| Big Hole | Valley | | Hocking | 39 25 29 N | 082 33 45 W |
| Big Hollow | Valley | | Licking | 40 02 29 N | 082 42 12 W |
| Big Hollow | Valley | | Wayne | 40 40 20 N | 081 57 16 W |
| Big Indian Creek | Stream | | Clermont | 38 53 36 N | 084 14 04 W |
| Big Island | Island | 155 | Scioto | 38 47 03 N | 083 00 02 W |
| Big Island | Populated Place | 284 | Marion | 40 36 44 N | 083 13 01 W |
| Big Island Post Office (historical) | Post Office | 285 | Marion | 40 36 45 N | 083 12 60 W |
| Big Island School (historical) | School | 278 | Marion | 40 34 12 N | 083 17 04 W |
| Big Island Wildlife Area | Park | 278 | Marion | 40 34 46 N | 083 16 31 W |
| Big Island Wildlife Area Dam | Dam | 280 | Marion | 40 35 24 N | 083 16 24 W |
| Big Island Wildlife Area Reservoir | Reservoir | 280 | Marion | 40 35 24 N | 083 16 24 W |
| Big Italy | Populated Place | 207 | Cuyahoga | 41 29 27 N | 081 39 55 W |
| Big Lake | Lake | 253 | Defiance | 41 24 41 N | 084 43 39 W |
| Big Meadows Picnic Area | Locale | 237 | Delaware | 40 09 15 N | 083 02 30 W |
| Big Met Golf Course | Locale | 186 | Cuyahoga | 41 26 35 N | 081 49 56 W |
| Big Oak Church | Church | 270 | Wyandot | 40 49 56 N | 083 28 36 W |
| Big Oak School (historical) | School | 269 | Wyandot | 40 49 56 N | 083 28 40 W |
| Big Oaks Picnic Area | Locale | 325 | Summit | 40 57 48 N | 081 33 36 W |
| Big Onion | Locale | 305 | Clinton | 39 15 44 N | 083 51 15 W |
| Big Pickerel Reef | Bar | 174 | Ottawa | 41 40 03 N | 083 03 57 W |
| Big Plain | Populated Place | 300 | Madison | 39 50 19 N | 083 17 21 W |
| Big Plain Cemetery | Cemetery | 298 | Madison | 39 50 14 N | 083 16 51 W |
| Big Plain Post Office (historical) | Post Office | 300 | Madison | 39 50 20 N | 083 17 20 W |
| Big Plain School (historical) | School | 298 | Madison | 39 50 15 N | 083 16 55 W |
| Big Prairie | Area | 289 | Wayne | 40 45 30 N | 082 05 50 W |
| Big Prairie | Populated Place | 290 | Holmes | 40 40 02 N | 082 05 43 W |
| Big Prairie Post Office | Post Office | 289 | Holmes | 40 40 00 N | 082 05 45 W |
| Big Rock | Populated Place | 207 | Jackson | 39 06 06 N | 082 46 35 W |
| Big Rock | Summit | 259 | Jackson | 39 05 58 N | 082 46 32 W |
| Big Rock Cemetery | Cemetery | 237 | Jackson | 39 05 39 N | 082 39 56 W |
| Big Rock Lake | Reservoir | 347 | Columbiana | 40 51 24 N | 080 45 05 W |
| Big Rock Lake | Reservoir | 245 | Jackson | 39 06 00 N | 082 47 24 W |
| Big Rock Lake Dam | Dam | 347 | Columbiana | 40 51 24 N | 080 45 05 W |
| Big Rock Lake Dam | Dam | 245 | Jackson | 39 06 00 N | 082 47 24 W |
| Big Run | Populated Place | 183 | Athens | 39 21 19 N | 081 52 21 W |
| Big Run | Stream | | Adams | 38 58 43 N | 083 16 39 W |
| Big Run | Stream | | Adams | 38 56 40 N | 083 29 32 W |
| Big Run | Stream | | Ashland | 40 39 14 N | 082 15 02 W |
| Big Run | Stream | | Athens | 39 21 15 N | 081 52 42 W |
| Big Run | Stream | | Belmont | 39 55 07 N | 080 47 12 W |
| Big Run | Stream | | Brown | 38 40 41 N | 083 43 17 W |
| Big Run | Stream | | Brown | 38 47 59 N | 083 57 16 W |
| Big Run | Stream | | Clermont | 38 47 08 N | 084 05 27 W |
| Big Run | Stream | | Coshocton | 40 26 03 N | 081 57 60 W |