Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Barnesburg | Populated Place | 245 | Hamilton | 39 13 44 N | 084 37 20 W |
| Barnesburgh Post Office (historical) | Post Office | 246 | Hamilton | 39 13 45 N | 084 37 20 W |
| Barnesville | Populated Place | 387 | Belmont | 39 59 17 N | 081 10 35 W |
| Barnesville Catholic Cemetery | Cemetery | 390 | Belmont | 39 58 53 N | 081 10 55 W |
| Barnesville Church of the Nazarene | Church | 391 | Belmont | 39 59 11 N | 081 10 29 W |
| Barnesville Elementary School | School | 390 | Belmont | 39 59 20 N | 081 10 43 W |
| Barnesville Health Care Center | Hospital | 392 | Belmont | 39 59 05 N | 081 11 03 W |
| Barnesville High School | School | 392 | Belmont | 39 59 14 N | 081 09 28 W |
| Barnesville Historic District | Park | 384 | Belmont | 39 59 16 N | 081 10 39 W |
| Barnesville Hospital | Hospital | 387 | Belmont | 39 59 34 N | 081 11 21 W |
| Barnesville Lake | Reservoir | 340 | Belmont | 39 59 54 N | 081 10 53 W |
| Barnesville Lake Dam | Dam | 340 | Belmont | 39 59 54 N | 081 10 53 W |
| Barnesville Medical Center | Hospital | 384 | Belmont | 39 59 35 N | 081 11 24 W |
| Barnesville Memorial Park | Park | 379 | Belmont | 39 59 47 N | 081 10 46 W |
| Barnesville Middle School | School | 389 | Belmont | 39 59 22 N | 081 10 46 W |
| Barnesville Post Office | Post Office | 389 | Belmont | 39 59 18 N | 081 10 34 W |
| Barnesville Reservoir | Reservoir | 350 | Belmont | 39 58 15 N | 081 09 20 W |
| Barnesville Reservoir | Reservoir | 379 | Belmont | 39 57 54 N | 081 10 59 W |
| Barnesville Reservoir Number One Dam | Dam | 352 | Belmont | 39 57 54 N | 081 09 59 W |
| Barnesville Reservoir Number Three | Reservoir | 323 | Belmont | 39 54 30 N | 081 09 35 W |
| Barnesville Reservoir Number Three Dam | Dam | 323 | Belmont | 39 54 30 N | 081 09 35 W |
| Barnesville Reservoir Number Two | Reservoir | 341 | Belmont | 39 58 18 N | 081 09 53 W |
| Barnesville Reservoir Number Two Dam | Dam | 341 | Belmont | 39 58 18 N | 081 09 53 W |
| Barnesville-Bradfield Airport | Airport | 389 | Belmont | 40 00 08 N | 081 11 30 W |
| Barnet School (historical) | School | 261 | Preble | 39 38 47 N | 084 37 51 W |
| Barnet Station (historical) | Locale | 271 | Preble | 39 39 22 N | 084 37 29 W |
| Barnett Airpark | Airport | 308 | Clinton | 39 20 00 N | 083 51 20 W |
| Barnett Cemetery | Cemetery | 211 | Lawrence | 38 37 40 N | 082 33 08 W |
| Barnett Cemetery | Cemetery | 281 | Pike | 39 10 28 N | 083 08 02 W |
| Barnett Cemetery | Cemetery | 292 | Shelby | 40 24 50 N | 084 16 21 W |
| Barnett Park | Park | 238 | Franklin | 39 56 48 N | 082 54 20 W |
| Barnett Recreation Center | Building | 235 | Franklin | 39 55 51 N | 082 54 19 W |
| Barnett Ridge | Ridge | 264 | Washington | 39 21 22 N | 081 37 36 W |
| Barnett Ridge Cemetery | Cemetery | 270 | Washington | 39 21 42 N | 081 37 30 W |
| Barnett Ridge Church | Church | 269 | Washington | 39 21 41 N | 081 37 29 W |
| Barnett Ridge Church | Church | 286 | Washington | 39 22 03 N | 081 37 02 W |
| Barnett Road Baptist Mission | Church | 236 | Franklin | 39 56 28 N | 082 54 24 W |
| Barnett School (historical) | School | 277 | Muskingum | 40 04 25 N | 081 47 18 W |
| Barnett School (historical) | School | 265 | Pike | 39 10 21 N | 083 07 60 W |
| Barney Convalescent Hospital | Hospital | 228 | Montgomery | 39 46 25 N | 084 10 03 W |
| Barney Fork | Stream | | Meigs | 39 06 14 N | 081 51 15 W |
| Barney Run | Stream | | Knox | 40 24 04 N | 082 19 30 W |
| Barney-Davis Hall | Building | 327 | Licking | 40 04 13 N | 082 31 30 W |
| Barnhart Hollow | Valley | | Jackson | 38 50 23 N | 082 38 45 W |
| Barnhill | Populated Place | 267 | Tuscarawas | 40 26 53 N | 081 22 08 W |
| Barnhill Cemetery | Cemetery | 279 | Athens | 39 12 50 N | 081 57 02 W |
| Barnhill Post Office (historical) | Post Office | 268 | Tuscarawas | 40 26 55 N | 081 22 09 W |
| Barnitz Park | Park | 197 | Butler | 39 30 10 N | 084 24 51 W |
| Barns Junior High School | School | 309 | Montgomery | 39 41 36 N | 084 10 05 W |
| Barnums Point | Cape | 175 | Erie | 41 35 49 N | 082 40 37 W |
| Barr Cemetery | Cemetery | 322 | Highland | 39 09 14 N | 083 45 59 W |
| Barr Cemetery | Cemetery | 293 | Morgan | 39 43 55 N | 081 44 10 W |
| Barr Corners | Locale | 323 | Highland | 39 09 13 N | 083 45 57 W |
| Barr Haven Park | Park | 312 | Union | 40 13 37 N | 083 22 52 W |
| Barr Road Cemetery | Cemetery | 378 | Cuyahoga | 41 17 59 N | 081 39 21 W |
| Barr Run | Stream | | Highland | 39 08 32 N | 083 48 15 W |
| Barr School (historical) | School | 275 | Brown | 38 50 16 N | 084 00 11 W |
| Barr School (historical) | School | 306 | Guernsey | 40 03 10 N | 081 36 24 W |
| Barre Farm Cemetery | Cemetery | 314 | Huron | 41 02 08 N | 082 33 38 W |
| Barrel Run | Stream | | Portage | 41 08 01 N | 081 11 22 W |
| Barren Creek | Stream | | Gallia | 38 54 20 N | 082 20 32 W |
| Barrett Cancer Center | Hospital | 236 | Hamilton | 39 08 11 N | 084 30 15 W |
| Barrett Cemetery | Cemetery | 285 | Huron | 41 07 41 N | 082 24 36 W |
| Barrett Cemetery | Cemetery | 168 | Scioto | 38 46 39 N | 082 50 41 W |
| Barrett Cemetery | Cemetery | 207 | Warren | 39 21 17 N | 084 10 52 W |
| Barrett Cemetery | Cemetery | 268 | Williams | 41 37 46 N | 084 29 46 W |
| Barrett Elementary School | School | 338 | Summit | 41 01 54 N | 081 29 46 W |
| Barrett Hill | Summit | 382 | Highland | 39 11 35 N | 083 22 34 W |
| Barrett Middle School | School | 232 | Franklin | 39 56 31 N | 082 59 18 W |
| Barrett School | School | 330 | Summit | 41 04 06 N | 081 33 05 W |
| Barrett School (historical) | School | 312 | Highland | 39 14 42 N | 083 29 59 W |
| Barretts Chapel | Church | 285 | Huron | 41 08 18 N | 082 24 38 W |
| Barretts Landing | Locale | 151 | Scioto | 38 41 10 N | 082 52 34 W |
| Barretts Mills | Populated Place | 251 | Highland | 39 12 09 N | 083 23 14 W |
| Barretts Mills Post Office (historical) | Post Office | 250 | Highland | 39 12 09 N | 083 23 15 W |
| Barrick | Populated Place | 287 | Carroll | 40 31 58 N | 081 15 08 W |
| Barrick Corners | Populated Place | 355 | Licking | 40 11 27 N | 082 33 03 W |
| Barringer Ridge | Ridge | 343 | Hocking | 39 28 52 N | 082 36 13 W |
| Barrington Road Elementary School | School | 253 | Franklin | 40 00 02 N | 083 03 24 W |
| Barron Creek | Stream | | Madison | 40 04 22 N | 083 24 13 W |
| Barrows Cemetery | Cemetery | 188 | Washington | 39 18 11 N | 081 50 12 W |
| Barrs Mills | Populated Place | 301 | Tuscarawas | 40 32 55 N | 081 37 24 W |
| Barrs Mills Post Office (historical) | Post Office | 305 | Tuscarawas | 40 32 55 N | 081 37 26 W |
| Barrs Woods (historical) | Woods | 162 | Hamilton | 39 06 10 N | 084 31 30 W |
| Barrsville | Populated Place | 156 | Hamilton | 39 07 25 N | 084 33 07 W |
| Barrys Ridge Cemetery | Cemetery | 342 | Noble | 39 47 29 N | 081 30 11 W |
| Barrys Ridge Church | Church | 342 | Noble | 39 47 29 N | 081 30 11 W |
| Bartholomew Run | Stream | | Delaware | 40 08 58 N | 083 02 36 W |
| Bartholow Airfield | Airport | 385 | Columbiana | 40 50 38 N | 080 42 09 W |
| Bartish Park | Park | 181 | Lorain | 41 26 23 N | 082 12 24 W |
| Bartles | Populated Place | 192 | Lawrence | 38 39 42 N | 082 39 36 W |
| Bartlett | Populated Place | 268 | Washington | 39 25 10 N | 081 48 56 W |
| Bartlett Cemetery | Cemetery | 270 | Washington | 39 25 25 N | 081 49 24 W |
| Bartlett Corners | Locale | 294 | Morrow | 40 27 21 N | 083 00 33 W |
| Bartlett Elementary School | School | 280 | Washington | 39 25 07 N | 081 48 42 W |
| Bartlett Friends Cemetery | Cemetery | 263 | Washington | 39 25 34 N | 081 48 36 W |
| Bartlett Run | Stream | | Muskingum | 39 58 47 N | 082 03 18 W |
| Bartley Pond | Reservoir | 304 | Greene | 39 38 54 N | 083 49 42 W |
| Bartley Pond Dam | Dam | 304 | Greene | 39 38 54 N | 083 49 42 W |
| Bartlow Cemetery | Cemetery | 156 | Brown | 38 46 43 N | 084 02 22 W |
| Barto School (historical) | School | 326 | Stark | 40 42 40 N | 081 27 04 W |
| Barton | Populated Place | 243 | Belmont | 40 06 26 N | 080 50 28 W |
| Barton Cemetery | Cemetery | 279 | Allen | 40 39 03 N | 084 03 56 W |
| Barton Cemetery | Cemetery | 375 | Belmont | 40 06 49 N | 080 49 46 W |
| Barton Cemetery | Cemetery | 219 | Meigs | 39 08 07 N | 081 59 39 W |
| Barton Cemetery | Cemetery | 305 | Pike | 39 06 16 N | 082 49 51 W |
| Barton Cemetery | Cemetery | 378 | Pike | 39 06 53 N | 083 13 38 W |
| Barton Cemetery | Cemetery | 359 | Wayne | 40 52 47 N | 081 57 12 W |
| Barton Elementary School (historical) | School | 264 | Belmont | 40 06 20 N | 080 50 51 W |
| Barton Manor (subdivision) | Populated Place | 269 | Guernsey | 40 01 10 N | 081 37 15 W |