Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Gheils Cemetery | Cemetery | 252 | Warren | 39 18 47 N | 084 07 20 W |
| Ghent | Populated Place | 278 | Summit | 41 09 30 N | 081 38 12 W |
| Ghent Christian Church | Church | 301 | Summit | 41 09 17 N | 081 39 28 W |
| Ghent Post Office (historical) | Post Office | 278 | Summit | 41 09 30 N | 081 38 14 W |
| Ghent Square Shopping Center | Locale | 281 | Summit | 41 09 31 N | 081 38 09 W |
| Ghormley (historical) | Populated Place | 268 | Fayette | 39 24 34 N | 083 22 44 W |
| Ghormley School (historical) | School | 300 | Fayette | 39 24 40 N | 083 22 03 W |
| Ghost Hedge Nature Trail | Trail | 269 | Montgomery | 39 48 12 N | 084 20 32 W |
| Ghost Hill | Summit | 331 | Knox | 40 29 22 N | 082 32 53 W |
| Ghost Hollow | Valley | | Brown | 38 44 54 N | 083 45 05 W |
| Ghost Hollow | Valley | | Scioto | 38 51 55 N | 083 01 34 W |
| Gibbons School | School | 193 | Cuyahoga | 41 34 10 N | 081 33 07 W |
| Gibbs Cemetery | Cemetery | 177 | Sandusky | 41 24 27 N | 083 01 18 W |
| Gibbs Cemetery | Cemetery | 271 | Warren | 39 17 43 N | 084 09 32 W |
| Gibbs Elementary School | School | 335 | Stark | 40 48 35 N | 081 21 44 W |
| Gibbs Field | Airport | 176 | Sandusky | 41 25 06 N | 083 01 03 W |
| Gibisonville | Populated Place | 336 | Hocking | 39 29 59 N | 082 33 60 W |
| Gibisonville Post Office (historical) | Post Office | 337 | Hocking | 39 29 58 N | 082 33 60 W |
| Gibler Cemetery | Cemetery | 308 | Highland | 39 06 47 N | 083 41 11 W |
| Gibler Cemetery | Cemetery | 317 | Highland | 39 11 49 N | 083 44 06 W |
| Gibraltar Bar | Bar | 174 | Ottawa | 41 39 24 N | 082 49 25 W |
| Gibson | Populated Place | 256 | Guernsey | 39 58 35 N | 081 24 47 W |
| Gibson Cemetery | Cemetery | 409 | Belmont | 40 01 00 N | 081 12 39 W |
| Gibson Chapel | Church | 180 | Lawrence | 38 33 03 N | 082 23 27 W |
| Gibson Creek | Stream | | Seneca | 41 06 09 N | 083 11 15 W |
| Gibson Heights Second Presbyterian Church | Church | 326 | Mahoning | 41 04 33 N | 080 38 26 W |
| Gibson Island | Island | 274 | Fairfield | 39 55 24 N | 082 28 12 W |
| Gibson Park | Park | 283 | Mahoning | 41 05 01 N | 080 38 29 W |
| Gibson Post Office (historical) | Post Office | 256 | Guernsey | 39 58 35 N | 081 24 49 W |
| Gibson Station Cemetery | Cemetery | 256 | Guernsey | 39 58 32 N | 081 24 48 W |
| Gibsonburg | Populated Place | 209 | Sandusky | 41 23 04 N | 083 19 14 W |
| Gibsonburg Church of the Nazarene | Church | 207 | Sandusky | 41 23 02 N | 083 19 55 W |
| Gibsonburg Junction (historical) | Populated Place | 195 | Sandusky | 41 25 57 N | 083 19 08 W |
| Gibsonburg Post Office | Post Office | 209 | Sandusky | 41 23 05 N | 083 19 15 W |
| Giddings Cemetery | Cemetery | 297 | Trumbull | 41 23 06 N | 080 32 34 W |
| Giddings Elementary School | School | 207 | Cuyahoga | 41 29 50 N | 081 38 26 W |
| Gideon Cemetery | Cemetery | 272 | Fairfield | 39 45 04 N | 082 35 21 W |
| Gideon Church | Church | 348 | Stark | 40 51 15 N | 081 17 34 W |
| Gideon Ditch | Canal | 229 | Paulding | 41 03 44 N | 084 46 36 W |
| Gideon United Brethren Church (historical) | Church | 274 | Fairfield | 39 45 05 N | 082 35 22 W |
| Gier Pond | Reservoir | 255 | Hamilton | 39 11 48 N | 084 19 12 W |
| Gier Pond Dam | Dam | 255 | Hamilton | 39 11 48 N | 084 19 12 W |
| Gieringer | Populated Place | 153 | Hamilton | 39 11 52 N | 084 44 14 W |
| Giffen Cemetery | Cemetery | 340 | Coshocton | 40 20 02 N | 082 10 37 W |
| Gifford State Forest | Forest | 255 | Athens | 39 26 50 N | 081 54 32 W |
| Gifts Fire Engine House | Building | 168 | Hamilton | 39 06 08 N | 084 30 49 W |
| Gilbert | Populated Place | 216 | Muskingum | 40 01 17 N | 081 58 35 W |
| Gilbert Airport | Airport | 240 | Cuyahoga | 41 22 00 N | 081 57 60 W |
| Gilbert Avenue Viaduct | Bridge | 159 | Hamilton | 39 06 20 N | 084 30 19 W |
| Gilbert Cemetery | Cemetery | 238 | Sandusky | 41 16 40 N | 082 55 07 W |
| Gilbert Cemetery | Cemetery | 244 | Warren | 39 22 51 N | 084 19 21 W |
| Gilbert Park | Park | 254 | Butler | 39 18 35 N | 084 30 23 W |
| Gilbert Post Office (historical) | Post Office | 226 | Muskingum | 40 01 15 N | 081 58 34 W |
| Gilbert Run | Stream | | Washington | 39 19 06 N | 081 46 12 W |
| Gilbert School | School | 213 | Cuyahoga | 41 27 53 N | 081 43 37 W |
| Gilbert School (historical) | School | 248 | Brown | 38 43 08 N | 083 44 10 W |
| Gilbert-Sinton Historic District | Park | 238 | Hamilton | 39 07 10 N | 084 29 40 W |
| Gilberts Mills (historical) | Locale | 221 | Paulding | 40 59 50 N | 084 28 35 W |
| Gilboa | Populated Place | 228 | Putnam | 41 01 05 N | 083 55 19 W |
| Gilboa Cemetery | Cemetery | 214 | Gallia | 38 54 51 N | 082 22 47 W |
| Gilboa Cemetery | Cemetery | 281 | Highland | 39 16 18 N | 083 27 08 W |
| Gilboa Elementary School | School | 228 | Putnam | 41 01 06 N | 083 55 24 W |
| Gilboa Main Street Historic District | Park | 227 | Putnam | 41 01 01 N | 083 55 20 W |
| Gilboa Post Office | Post Office | 228 | Putnam | 41 01 05 N | 083 55 20 W |
| Gilboa United Methodist Church | Church | 229 | Putnam | 41 01 02 N | 083 55 27 W |
| Gilbraltar Island | Island | 186 | Ottawa | 41 39 30 N | 082 49 16 W |
| Gilcrest Building | Building | 197 | Cuyahoga | 41 29 58 N | 081 41 58 W |
| Gildersleeve Elementary School | School | 326 | Lake | 41 34 57 N | 081 21 38 W |
| Gildersleeve Mountain | Summit | 354 | Lake | 41 35 40 N | 081 21 35 W |
| Gilead Friends Church | Church | 343 | Morrow | 40 30 58 N | 082 50 09 W |
| Gilham Cemetery | Cemetery | 214 | Athens | 39 18 07 N | 082 09 12 W |
| Gill Center for Business and Economic Education | Building | 351 | Ashland | 40 51 46 N | 082 19 14 W |
| Gilles-Sweet School (historical) | School | 227 | Cuyahoga | 41 26 35 N | 081 51 55 W |
| Gillespie Cemetery | Cemetery | 385 | Monroe | 39 45 10 N | 081 03 25 W |
| Gillespie Park | Park | 228 | Montgomery | 39 44 30 N | 084 13 35 W |
| Gillette | Populated Place | 172 | Lawrence | 38 27 38 N | 082 19 32 W |
| Gillham Hall | Building | 186 | Lucas | 41 39 44 N | 083 36 47 W |
| Gillie Park | Park | 329 | Summit | 41 19 48 N | 081 26 22 W |
| Gilliland Cemetery | Cemetery | 271 | Wyandot | 40 49 59 N | 083 10 46 W |
| Gillivan | Populated Place | 298 | Madison | 39 59 19 N | 083 20 13 W |
| Gillivan Methodist Church | Church | 298 | Madison | 39 59 19 N | 083 20 15 W |
| Gillivan School (historical) | School | 298 | Madison | 39 59 24 N | 083 20 07 W |
| Gillmor Airport | Airport | 202 | Sandusky | 41 16 58 N | 083 08 53 W |
| Gillums Lake | Lake | 187 | Jackson | 39 11 47 N | 082 45 47 W |
| Gilman Student Center | Building | 187 | Washington | 39 24 58 N | 081 26 55 W |
| Gilman United Methodist Church | Church | 182 | Washington | 39 24 44 N | 081 27 33 W |
| Gilmer Airport | Airport | 316 | Preble | 39 49 49 N | 084 30 35 W |
| Gilmore | Populated Place | 364 | Tuscarawas | 40 17 27 N | 081 26 25 W |
| Gilmore Bridge | Bridge | 196 | Sandusky | 41 15 47 N | 083 09 26 W |
| Gilmore Cemetery | Cemetery | 213 | Meigs | 39 01 14 N | 081 57 33 W |
| Gilmore Heights | Populated Place | 172 | Gallia | 38 50 55 N | 082 08 47 W |
| Gilmore Playground | Park | 233 | Cuyahoga | 41 26 04 N | 081 46 59 W |
| Gilmore Post Office (historical) | Post Office | 371 | Tuscarawas | 40 17 25 N | 081 26 24 W |
| Gilmore Run | Stream | | Monroe | 39 43 39 N | 080 51 27 W |
| Gilmour Academy | School | 351 | Cuyahoga | 41 30 05 N | 081 26 14 W |
| Gilpatrick Honors Center | Building | 335 | Licking | 40 04 15 N | 082 31 14 W |
| Gilpen Run | Stream | | Adams | 38 37 29 N | 083 19 12 W |
| Gilroy Ditch | Canal | 342 | Clark | 39 50 05 N | 083 36 10 W |
| Gilruth-Davisson Cemetery | Cemetery | 165 | Lawrence | 38 34 19 N | 082 48 23 W |
| Gilson Park | Park | 181 | Lake | 41 39 04 N | 081 24 19 W |
| Gilt Edge School (historical) | School | 297 | Muskingum | 39 52 00 N | 081 42 51 W |
| Gimblet Hill School (historical) | School | 295 | Williams | 41 36 25 N | 084 47 18 W |
| Gina Lake | Reservoir | 208 | Lawrence | 38 30 57 N | 082 36 11 W |
| Ginat Creek | Stream | | Scioto | 38 36 59 N | 082 51 14 W |
| Ginat Creek Church | Church | 165 | Scioto | 38 37 29 N | 082 50 01 W |
| Gindlesberger Cemetery | Cemetery | 351 | Holmes | 40 35 18 N | 081 52 42 W |
| Ginger Hill | Populated Place | 363 | Mahoning | 40 58 22 N | 080 34 09 W |
| Ginger Hill School (historical) | School | 331 | Guernsey | 39 56 36 N | 081 41 58 W |
| Ginger Ridge | Ridge | 278 | Adams | 38 39 38 N | 083 39 12 W |
| Ginghamsburg | Populated Place | 289 | Miami | 39 55 47 N | 084 11 58 W |