Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Elk Lake | Reservoir | 279 | Warren | 39 23 57 N | 084 06 44 W |
| Elk Lake Dam | Dam | 279 | Warren | 39 23 57 N | 084 06 44 W |
| Elk Lick | Populated Place | 200 | Clermont | 39 01 36 N | 084 07 47 W |
| Elk Lick | Stream | | Jefferson | 40 27 28 N | 080 56 25 W |
| Elk Lick (historical) | Populated Place | 195 | Clermont | 39 01 40 N | 084 07 52 W |
| Elk Point | Cape | 184 | Lake | 41 37 46 N | 081 23 58 W |
| Elk Post Office (historical) | Post Office | 218 | Noble | 39 40 25 N | 081 20 09 W |
| Elk Run | Stream | | Adams | 38 37 50 N | 083 39 15 W |
| Elk Run | Stream | | Columbiana | 40 45 39 N | 080 41 53 W |
| Elk Run | Stream | | Harrison | 40 14 51 N | 081 08 47 W |
| Elk Run | Stream | | Highland | 39 03 29 N | 083 29 57 W |
| Elk Run | Stream | | Meigs | 39 10 08 N | 081 57 06 W |
| Elk Run | Stream | | Muskingum | 39 47 42 N | 082 03 52 W |
| Elk Run | Stream | | Noble | 39 42 35 N | 081 30 35 W |
| Elk Run | Stream | | Washington | 39 35 21 N | 081 39 01 W |
| Elk Run | Stream | | Washington | 39 29 50 N | 081 14 53 W |
| Elk Run Park | Park | 222 | Franklin | 39 53 46 N | 082 53 55 W |
| Elk Township School | School | 216 | Noble | 39 38 46 N | 081 18 37 W |
| Elkhorn Creek | Stream | | Jefferson | 40 30 37 N | 080 53 36 W |
| Elkhorn Creek | Stream | | Preble | 39 45 50 N | 084 56 13 W |
| Elkhorn Lake Landing Strip | Airport | 318 | Crawford | 40 51 18 N | 082 53 07 W |
| Elkins Creek | Stream | | Lawrence | 38 38 00 N | 082 30 14 W |
| Elkrun Cemetery | Cemetery | 345 | Columbiana | 40 48 39 N | 080 39 49 W |
| Elks Club Golf Course | Locale | 275 | Mercer | 40 26 41 N | 084 33 54 W |
| Elks Country Club | Locale | 211 | Butler | 39 25 38 N | 084 27 56 W |
| Elks Country Club | Locale | 196 | Scioto | 38 48 30 N | 083 01 08 W |
| Elks Country Club Dam | Dam | 169 | Scioto | 38 48 30 N | 083 00 36 W |
| Elks Country Club Lake | Reservoir | 168 | Scioto | 38 48 30 N | 083 00 36 W |
| Elkton | Populated Place | 272 | Columbiana | 40 45 43 N | 080 41 55 W |
| Elkton Post Office | Post Office | 274 | Columbiana | 40 45 45 N | 080 41 54 W |
| Ella Beach Ditch | Canal | 284 | Madison | 40 01 41 N | 083 16 27 W |
| Ella Canavan Elementary School | School | 341 | Medina | 41 07 36 N | 081 52 11 W |
| Ella M Everhard Public Library | Building | 358 | Medina | 41 01 33 N | 081 43 41 W |
| Ella Mine | Mine | 389 | Harrison | 40 19 40 N | 080 54 31 W |
| Ella P Stewart Academy for Girls | School | 189 | Lucas | 41 38 55 N | 083 33 42 W |
| Ella Schenck Memorial United Brethren Church | Church | 301 | Shelby | 40 17 19 N | 084 09 29 W |
| Ellemans (historical) | Populated Place | 273 | Miami | 40 00 30 N | 084 20 22 W |
| Ellenora | Populated Place | 216 | Hamilton | 39 05 00 N | 084 22 29 W |
| Ellenora Post Office (historical) | Post Office | 217 | Hamilton | 39 05 00 N | 084 22 28 W |
| Ellenwood Elementary School | School | 291 | Cuyahoga | 41 23 57 N | 081 32 20 W |
| Ellerton | Populated Place | 228 | Montgomery | 39 40 39 N | 084 18 34 W |
| Ellerton Cemetery | Cemetery | 229 | Montgomery | 39 40 47 N | 084 18 37 W |
| Ellerton Post Office (historical) | Post Office | 229 | Montgomery | 39 40 40 N | 084 18 35 W |
| Ellet | Populated Place | 342 | Summit | 41 03 05 N | 081 26 07 W |
| Ellet Branch Library | Building | 338 | Summit | 41 03 00 N | 081 26 14 W |
| Ellet Church of the Nazarene | Church | 333 | Summit | 41 02 42 N | 081 25 43 W |
| Ellet Community Church of God | Church | 328 | Summit | 41 02 30 N | 081 26 00 W |
| Ellet Grace Brethren Church | Church | 338 | Summit | 41 02 45 N | 081 26 06 W |
| Ellet High School | School | 345 | Summit | 41 03 12 N | 081 26 04 W |
| Ellet Park | Park | 328 | Summit | 41 02 38 N | 081 26 19 W |
| Ellet Post Office | Post Office | 329 | Summit | 41 02 37 N | 081 26 10 W |
| Ellet Post Office (historical) | Post Office | 341 | Summit | 41 03 05 N | 081 26 09 W |
| Elliot Cemetery | Cemetery | 176 | Ross | 39 12 57 N | 082 47 53 W |
| Elliot Run | Stream | | Union | 40 23 34 N | 083 17 02 W |
| Elliot School (historical) | School | 296 | Morgan | 39 39 30 N | 081 37 12 W |
| Elliot School (historical) | School | 292 | Union | 40 21 35 N | 083 18 40 W |
| Elliots Landing | Locale | 152 | Scioto | 38 37 00 N | 083 12 05 W |
| Elliott Cemetery | Cemetery | 330 | Holmes | 40 28 49 N | 081 52 41 W |
| Elliott Cemetery | Cemetery | 292 | Morrow | 40 27 00 N | 082 57 59 W |
| Elliott Cemetery | Cemetery | 314 | Shelby | 40 27 14 N | 084 03 53 W |
| Elliott Crossroads | Populated Place | 314 | Morgan | 39 31 51 N | 081 56 38 W |
| Elliott Hall | Building | 285 | Butler | 39 30 32 N | 084 44 07 W |
| Elliott Hall | Building | 270 | Delaware | 40 17 44 N | 083 03 59 W |
| Elliott Post Office (historical) | Post Office | 317 | Morgan | 39 31 50 N | 081 56 40 W |
| Elliott Run | Stream | | Carroll | 40 33 58 N | 081 12 38 W |
| Elliott Run | Stream | | Knox | 40 18 26 N | 082 22 03 W |
| Elliott School (historical) | School | 314 | Highland | 39 17 58 N | 083 24 32 W |
| Elliott School (historical) | School | 214 | Muskingum | 39 52 10 N | 081 51 50 W |
| Elliottville | Populated Place | 231 | Athens | 39 18 43 N | 082 07 22 W |
| Ellis | Populated Place | 231 | Muskingum | 40 02 46 N | 081 58 58 W |
| Ellis Cemetery | Cemetery | 256 | Hancock | 40 57 28 N | 083 37 31 W |
| Ellis Cemetery | Cemetery | 311 | Highland | 39 14 43 N | 083 45 44 W |
| Ellis Cemetery | Cemetery | 268 | Mercer | 40 28 59 N | 084 33 06 W |
| Ellis Cemetery | Cemetery | 299 | Morgan | 39 31 23 N | 081 47 35 W |
| Ellis Chapel | Church | 295 | Licking | 39 59 55 N | 082 19 40 W |
| Ellis Chapel Cemetery | Cemetery | 290 | Licking | 39 59 57 N | 082 19 46 W |
| Ellis Dam | Dam | 211 | Muskingum | 40 02 34 N | 081 58 37 W |
| Ellis Elementary School | School | 235 | Sandusky | 41 16 02 N | 082 50 47 W |
| Ellis Grove Cemetery | Cemetery | 258 | Brown | 38 39 12 N | 083 42 53 W |
| Ellis Hall | Building | 218 | Athens | 39 19 33 N | 082 05 59 W |
| Ellis Junior High School | School | 303 | Hardin | 40 38 54 N | 083 36 18 W |
| Ellis Lake | Reservoir | 243 | Wyandot | 40 53 12 N | 083 13 48 W |
| Ellis Lake Dam | Dam | 243 | Wyandot | 40 53 12 N | 083 13 48 W |
| Ellis Landing | Locale | 152 | Adams | 38 38 13 N | 083 41 51 W |
| Ellis Park | Park | 293 | Greene | 39 49 05 N | 083 53 23 W |
| Ellis Park | Park | 232 | Sandusky | 41 16 00 N | 082 50 41 W |
| Ellis Post Office (historical) | Post Office | 230 | Muskingum | 40 02 45 N | 081 58 59 W |
| Ellis Run | Stream | | Adams | 38 45 33 N | 083 23 44 W |
| Ellis Run | Stream | | Brown | 38 40 53 N | 083 43 10 W |
| Ellis Run | Stream | | Muskingum | 40 02 41 N | 081 59 26 W |
| Ellis Run | Stream | | Washington | 39 21 06 N | 081 50 56 W |
| Ellis Run School (historical) | School | 195 | Brown | 38 41 14 N | 083 43 18 W |
| Ellis School (historical) | School | 299 | Morgan | 39 31 23 N | 081 47 36 W |
| Ellis School (historical) | School | 251 | Muskingum | 40 02 58 N | 081 59 31 W |
| Ellison Creek | Stream | | Lake | 41 41 10 N | 081 15 23 W |
| Ellison Run | Stream | | Adams | 38 41 48 N | 083 33 57 W |
| Ellison School (historical) | School | 305 | Adams | 38 45 02 N | 083 33 34 W |
| Ellison Senior Citizens Center | Building | 235 | Montgomery | 39 45 09 N | 084 13 59 W |
| Ellison Street Church of the Nazarene | Church | 164 | Lawrence | 38 33 18 N | 082 42 49 W |
| Ellisonville | Populated Place | 205 | Lawrence | 38 36 16 N | 082 38 49 W |
| Ellisonville Creek | Stream | | Lawrence | 38 38 14 N | 082 40 55 W |
| Elliston | Populated Place | 183 | Ottawa | 41 32 51 N | 083 16 49 W |
| Elliston Cemetery | Cemetery | 181 | Ottawa | 41 32 34 N | 083 16 25 W |
| Elliston Post Office | Post Office | 183 | Ottawa | 41 32 50 N | 083 16 50 W |
| Ellsberry | Populated Place | 177 | Brown | 38 40 45 N | 083 43 16 W |
| Ellsberry Post Office (historical) | Post Office | 177 | Brown | 38 40 45 N | 083 43 16 W |
| Ellsworth | Populated Place | 320 | Mahoning | 41 01 27 N | 080 51 26 W |
| Ellsworth Cemetery | Cemetery | 319 | Mahoning | 41 01 31 N | 080 51 03 W |
| Ellsworth Cemetery | Cemetery | 209 | Sandusky | 41 19 46 N | 082 55 37 W |
| Ellsworth Elementary School | School | 327 | Mahoning | 41 01 44 N | 080 51 31 W |