Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Huffer Durdin Park | Park | 260 | Fairfield | 39 43 33 N | 082 34 10 W |
| Huffeysville (historical) | Populated Place | 246 | Greene | 39 49 05 N | 084 04 28 W |
| Huffine Hollow | Valley | | Hocking | 39 28 19 N | 082 35 41 W |
| Huffman Cemetery | Cemetery | 196 | Washington | 39 26 26 N | 081 10 21 W |
| Huffman Covered Bridge | Bridge | 207 | Noble | 39 39 06 N | 081 21 58 W |
| Huffman Creek | Stream | | Auglaize | 40 36 39 N | 084 06 47 W |
| Huffman Dam | Dam | 248 | Greene | 39 47 51 N | 084 05 26 W |
| Huffman Dam | Dam | 257 | Greene | 39 37 48 N | 084 05 24 W |
| Huffman Elementary School | School | 232 | Montgomery | 39 45 38 N | 084 09 56 W |
| Huffman Farm Airport | Airport | 227 | Fulton | 41 30 00 N | 084 14 60 W |
| Huffman Hall | Building | 334 | Licking | 40 04 14 N | 082 31 09 W |
| Huffman Historic District | Park | 231 | Montgomery | 39 45 42 N | 084 10 02 W |
| Huffman Industrial Park | Locale | 278 | Delaware | 40 09 44 N | 083 04 30 W |
| Huffman Park | Park | 238 | Montgomery | 39 39 42 N | 084 12 10 W |
| Huffman Prairie National Historic Landmark | Park | 243 | Greene | 39 48 16 N | 084 03 50 W |
| Huffman Reservoir | Reservoir | 248 | Greene | 39 47 51 N | 084 05 26 W |
| Huffman Reservoir | Reservoir | 257 | Greene | 39 37 48 N | 084 05 24 W |
| Huffman Unger Ridge | Ridge | 324 | Hocking | 39 27 06 N | 082 32 26 W |
| Hufford Cemetery | Cemetery | 188 | Wood | 41 33 54 N | 083 35 23 W |
| Hugg Cemetery | Cemetery | 208 | Meigs | 39 05 37 N | 082 13 17 W |
| Huggins School (historical) | School | 287 | Muskingum | 39 51 16 N | 082 05 31 W |
| Hughes | Populated Place | 216 | Butler | 39 23 13 N | 084 24 29 W |
| Hughes Cemetery | Cemetery | 291 | Noble | 39 39 28 N | 081 32 39 W |
| Hughes Cemetery | Cemetery | 224 | Putnam | 40 56 45 N | 084 09 42 W |
| Hughes Eddy | Bay | 172 | Meigs | 38 55 34 N | 081 47 04 W |
| Hughes Hall | Building | 230 | Franklin | 40 00 02 N | 083 00 39 W |
| Hughes High School | School | 261 | Hamilton | 39 07 43 N | 084 31 19 W |
| Hughes Laboratories | Building | 274 | Butler | 39 30 34 N | 084 43 54 W |
| Hughes Post Office (historical) | Post Office | 219 | Butler | 39 23 15 N | 084 24 30 W |
| Hugle Run | Stream | | Carroll | 40 42 45 N | 081 08 57 W |
| Hugo Young Theatre | Building | 351 | Ashland | 40 51 43 N | 082 19 07 W |
| Hulbert Cemetery | Cemetery | 194 | Gallia | 38 48 48 N | 082 19 43 W |
| Hulington | Populated Place | 263 | Clermont | 38 59 19 N | 084 09 32 W |
| Hulington Post Office (historical) | Post Office | 263 | Clermont | 38 59 20 N | 084 09 30 W |
| Hulitt Cemetery | Cemetery | 268 | Highland | 39 14 22 N | 083 21 17 W |
| Hulitt School (historical) | School | 275 | Highland | 39 13 54 N | 083 21 47 W |
| Hull | Populated Place | 244 | Athens | 39 15 14 N | 081 58 06 W |
| Hull Airport | Airport | 209 | Sandusky | 41 15 26 N | 083 12 22 W |
| Hull Cemetery | Cemetery | 280 | Adams | 38 52 24 N | 083 29 19 W |
| Hull Hollow | Valley | | Vinton | 39 21 32 N | 082 19 08 W |
| Hull Post Office (historical) | Post Office | 248 | Athens | 39 15 15 N | 081 58 05 W |
| Hull Prairie | Populated Place | 199 | Wood | 41 28 25 N | 083 41 49 W |
| Hull School (historical) | School | 302 | Union | 40 22 27 N | 083 22 22 W |
| Hullibarger Cemetery | Cemetery | 302 | Allen | 40 42 36 N | 083 57 25 W |
| Hulls Creek | Stream | | Shelby | 40 25 45 N | 084 13 03 W |
| Hulls Crossing | Populated Place | 178 | Wood | 41 32 16 N | 083 41 34 W |
| Hulls Prairie | Area | 201 | Wood | 41 26 30 N | 083 41 60 W |
| Hulse Farm Cemetery | Cemetery | 210 | Pickaway | 39 37 16 N | 083 01 17 W |
| Hulse Hill | Summit | 433 | Morrow | 40 23 19 N | 082 42 32 W |
| Hulse School (historical) | School | 209 | Pickaway | 39 37 13 N | 083 01 15 W |
| Hum Cemetery | Cemetery | 356 | Columbiana | 40 52 15 N | 080 39 36 W |
| Humboldt | Populated Place | 243 | Ross | 39 16 38 N | 083 18 50 W |
| Humboldt Post Office (historical) | Post Office | 247 | Ross | 39 16 40 N | 083 18 50 W |
| Hume | Populated Place | 258 | Allen | 40 39 47 N | 084 12 03 W |
| Hume Post Office (historical) | Post Office | 258 | Allen | 40 39 50 N | 084 11 60 W |
| Hummel Airport | Airport | 212 | Montgomery | 39 35 35 N | 084 20 38 W |
| Hummel School (historical) | School | 274 | Tuscarawas | 40 27 32 N | 081 28 08 W |
| Hummel Valley | Valley | | Tuscarawas | 40 27 45 N | 081 27 42 W |
| Hummell Bridge | Bridge | 233 | Fairfield | 39 38 41 N | 082 31 48 W |
| Hump Run | Stream | | Jefferson | 40 32 14 N | 080 53 50 W |
| Humphrey Cemetery | Cemetery | 194 | Athens | 39 12 21 N | 081 47 33 W |
| Humphrey Hall | Building | 342 | Portage | 41 08 34 N | 081 20 11 W |
| Humphrey Hill | Summit | 348 | Pike | 39 05 43 N | 083 18 13 W |
| Humphrey Park | Park | 317 | Shelby | 40 17 31 N | 084 10 06 W |
| Humphrey School (historical) | School | 314 | Licking | 39 58 27 N | 082 13 25 W |
| Humphries Rotordrome | Airport | 256 | Clermont | 39 03 24 N | 084 12 15 W |
| Hunchberger Corners | Populated Place | 317 | Darke | 40 13 20 N | 084 44 48 W |
| Hune Bridge | Bridge | 195 | Washington | 39 30 38 N | 081 15 01 W |
| Hune Bridge Canoe Access Area | Locale | 192 | Washington | 39 30 35 N | 081 15 02 W |
| Hune Covered Bridge | Bridge | 195 | Washington | 39 30 38 N | 081 15 01 W |
| Hungarian Assembly of God Church | Church | 204 | Cuyahoga | 41 28 37 N | 081 43 17 W |
| Hungarian Baptist Church | Church | 343 | Medina | 41 01 09 N | 081 43 43 W |
| Hungarian Bethany Church | Church | 264 | Cuyahoga | 41 28 52 N | 081 36 26 W |
| Hungarian Magyar Evangelical and Reformed Church | Church | 192 | Ashtabula | 41 53 35 N | 080 47 20 W |
| Hungarian Presbyterian Church | Church | 260 | Mahoning | 41 06 05 N | 080 39 48 W |
| Hungarian Presbyterian Church | Church | 263 | Trumbull | 41 10 34 N | 080 46 00 W |
| Hungarian Reformed Church | Church | 227 | Franklin | 39 55 37 N | 082 59 10 W |
| Hungarian Reformed Church | Church | 186 | Lake | 41 45 02 N | 081 16 27 W |
| Hungarian Reformed Church | Church | 192 | Lorain | 41 26 32 N | 082 08 30 W |
| Hungry Hollow | Valley | | Jackson | 38 59 48 N | 082 28 06 W |
| Hungry Hollow | Valley | | Lawrence | 38 35 56 N | 082 36 47 W |
| Hungry Hollow | Valley | | Lawrence | 38 43 52 N | 082 32 14 W |
| Hungry Hollow | Valley | | Pike | 39 04 51 N | 083 09 11 W |
| Hunt | Populated Place | 317 | Knox | 40 19 14 N | 082 28 14 W |
| Hunt Avenue Free Pentecostal Holiness Church | Church | 208 | Butler | 39 24 33 N | 084 35 13 W |
| Hunt Cemetery | Cemetery | 335 | Delaware | 40 09 49 N | 082 46 45 W |
| Hunt Cemetery | Cemetery | 311 | Preble | 39 54 36 N | 084 31 53 W |
| Hunt Cemetery | Cemetery | 276 | Wyandot | 40 44 07 N | 083 15 40 W |
| Hunt Hollow | Valley | | Adams | 38 49 37 N | 083 20 40 W |
| Hunt Hollow | Valley | | Gallia | 38 49 40 N | 082 28 47 W |
| Hunt Post Office (historical) | Post Office | 315 | Knox | 40 19 15 N | 082 28 15 W |
| Hunt School | School | 259 | Hamilton | 39 13 59 N | 084 32 57 W |
| Hunt School | School | 276 | Warren | 39 29 37 N | 084 17 09 W |
| Huntcrest Acres | Populated Place | 255 | Hamilton | 39 04 52 N | 084 20 11 W |
| Hunter | Populated Place | 375 | Belmont | 39 56 52 N | 081 03 26 W |
| Hunter | Populated Place | 270 | Warren | 39 29 34 N | 084 17 23 W |
| Hunter (historical) | Populated Place | 314 | Noble | 39 49 40 N | 081 38 06 W |
| Hunter Cemetery | Cemetery | 270 | Athens | 39 21 38 N | 082 04 04 W |
| Hunter Cemetery | Cemetery | 376 | Belmont | 39 56 54 N | 081 03 29 W |
| Hunter Christian Church | Church | 382 | Belmont | 39 56 54 N | 081 03 26 W |
| Hunter Community United Methodist Church | Church | 265 | Warren | 39 29 53 N | 084 17 34 W |
| Hunter Creek | Stream | | Clermont | 39 14 21 N | 084 01 46 W |
| Hunter Hollow | Valley | | Monroe | 39 41 35 N | 081 08 04 W |
| Hunter Marsh | Swamp | 175 | Ottawa | 41 36 57 N | 083 14 09 W |
| Hunter Park | Park | 255 | Fairfield | 39 42 31 N | 082 37 15 W |
| Hunter Park | Park | 189 | Hamilton | 39 10 34 N | 084 27 24 W |
| Hunter Post Office (historical) | Post Office | 360 | Belmont | 39 56 50 N | 081 03 29 W |
| Hunter School (historical) | School | 341 | Clark | 40 00 22 N | 083 45 41 W |
| Hunter School (historical) | School | 364 | Coshocton | 40 26 30 N | 082 10 35 W |
| Hunter School (historical) | School | 347 | Wayne | 40 44 28 N | 081 48 25 W |