Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Layland Post Office (historical) | Post Office | 242 | Coshocton | 40 26 10 N | 081 57 60 W |
| Layland School (historical) | School | 254 | Coshocton | 40 26 28 N | 081 58 33 W |
| Layman | Populated Place | 288 | Washington | 39 24 12 N | 081 43 27 W |
| Layman Cemetery | Cemetery | 286 | Washington | 39 24 18 N | 081 43 26 W |
| Laymon School (historical) | School | 304 | Highland | 39 13 50 N | 083 50 43 W |
| Layne (subdivision) | Populated Place | 311 | Clark | 39 54 46 N | 083 46 29 W |
| Laynecrest Plaza Shopping Center | Locale | 236 | Warren | 39 33 47 N | 084 16 60 W |
| Layton Ditch | Canal | 249 | Wyandot | 40 53 57 N | 083 15 59 W |
| Layton Elementary School | School | 356 | Wayne | 40 49 22 N | 081 56 16 W |
| Lazenby Hall | Building | 226 | Franklin | 39 59 54 N | 083 00 56 W |
| Lazy Ridge School (historical) | School | 296 | Brown | 39 00 14 N | 083 46 52 W |
| Lazy River Campground | Locale | 263 | Williams | 41 38 23 N | 084 34 35 W |
| Lazy-W Airport | Airport | 229 | Hocking | 39 30 49 N | 082 26 57 W |
| Le Mae | Populated Place | 167 | Lawrence | 38 26 44 N | 082 19 56 W |
| Le Sourdsville | Populated Place | 196 | Butler | 39 26 25 N | 084 25 48 W |
| Le Sourdsville Post Office (historical) | Post Office | 195 | Butler | 39 26 26 N | 084 25 53 W |
| Leach Cemetery | Cemetery | 270 | Lawrence | 38 34 55 N | 082 32 28 W |
| Lead Run | Stream | | Athens | 39 17 09 N | 081 49 56 W |
| Leader Square Shopping Center | Locale | 232 | Franklin | 39 55 45 N | 082 55 28 W |
| Leadership And Human Services Institute | School | | Cuyahoga | 41 29 29 N | 081 39 11 W |
| Leadership And Urban Awareness Academy | School | | Cuyahoga | 41 26 57 N | 081 33 37 W |
| Leading Creek | Stream | | Meigs | 38 59 04 N | 082 04 18 W |
| League Elementary School | School | 216 | Huron | 41 14 54 N | 082 37 02 W |
| League Park | Park | 197 | Cuyahoga | 41 30 42 N | 081 38 35 W |
| Leaning Tree Golf Club | Locale | 373 | Summit | 41 14 03 N | 081 39 11 W |
| Leaper | Populated Place | 201 | Gallia | 38 40 56 N | 082 16 13 W |
| Leaper Post Office (historical) | Post Office | 215 | Gallia | 38 40 55 N | 082 16 15 W |
| Learwood Junior High School | School | 190 | Lorain | 41 29 52 N | 081 59 26 W |
| Learwood Square Shopping Center | Locale | 191 | Lorain | 41 29 38 N | 081 59 10 W |
| Leas Branch | Stream | | Jefferson | 40 23 36 N | 080 50 20 W |
| Leas Cemetery | Cemetery | 354 | Jefferson | 40 24 38 N | 080 50 13 W |
| Lease Park | Park | 317 | Portage | 41 09 30 N | 081 23 10 W |
| Leasure Cemetery | Cemetery | 283 | Ross | 39 25 03 N | 082 47 40 W |
| Leatha House County Park | Park | 294 | Medina | 41 06 52 N | 082 03 25 W |
| Leather Ear Church | Church | 278 | Warren | 39 22 25 N | 084 00 44 W |
| Leatherlips Cemetery | Cemetery | 246 | Franklin | 40 08 23 N | 083 07 06 W |
| Leatherwood Cemetery | Cemetery | 274 | Guernsey | 39 59 56 N | 081 21 59 W |
| Leatherwood Cemetery | Cemetery | 281 | Lawrence | 38 31 17 N | 082 31 49 W |
| Leatherwood Cemetery | Cemetery | 349 | Miami | 40 08 56 N | 084 01 46 W |
| Leatherwood Church | Church | 198 | Lawrence | 38 30 33 N | 082 31 21 W |
| Leatherwood Creek | Stream | | Guernsey | 40 00 36 N | 081 34 36 W |
| Leatherwood Creek | Stream | | Lawrence | 38 30 07 N | 082 28 52 W |
| Leatherwood Creek | Stream | | Richland | 40 54 37 N | 082 35 01 W |
| Leatherwood Creek | Stream | | Shelby | 40 15 56 N | 084 05 18 W |
| Leatherwood Creek | Stream | | Williams | 41 31 07 N | 084 25 17 W |
| Leatherwood Ditch | Canal | 232 | Allen | 40 50 55 N | 084 14 22 W |
| Leatherwood School (historical) | School | 281 | Guernsey | 40 00 03 N | 081 21 53 W |
| Leatherwood School (historical) | School | 348 | Miami | 40 10 13 N | 084 02 04 W |
| Leatherwood School (historical) | School | 164 | Scioto | 38 38 02 N | 083 08 60 W |
| Leavell Cemetery | Cemetery | 269 | Fayette | 39 39 21 N | 083 16 53 W |
| Leavelle Airstrip | Airport | 285 | Miami | 40 00 43 N | 084 16 53 W |
| Leaverton Cemetery | Cemetery | 320 | Highland | 39 16 41 N | 083 32 06 W |
| Leavittsburg | Populated Place | 277 | Trumbull | 41 14 52 N | 080 52 37 W |
| Leavittsburg Cemetery | Cemetery | 268 | Trumbull | 41 14 26 N | 080 51 53 W |
| Leavittsburg Post Office | Post Office | 278 | Trumbull | 41 14 50 N | 080 52 39 W |
| Leavittsville | Populated Place | 356 | Carroll | 40 30 49 N | 081 11 46 W |
| Leavittsville Cemetery | Cemetery | 355 | Carroll | 40 30 48 N | 081 11 47 W |
| Leavittsville Post Office (historical) | Post Office | 354 | Carroll | 40 30 50 N | 081 11 44 W |
| Leawood Elementary School | School | 236 | Franklin | 39 56 25 N | 082 52 45 W |
| Lebanon | Populated Place | 326 | Monroe | 39 36 28 N | 081 16 23 W |
| Lebanon | Populated Place | 234 | Warren | 39 26 07 N | 084 12 11 W |
| Lebanon Cemetery | Cemetery | 354 | Guernsey | 40 03 41 N | 081 41 38 W |
| Lebanon Cemetery | Cemetery | 400 | Jefferson | 40 28 51 N | 080 48 45 W |
| Lebanon Cemetery | Cemetery | 299 | Morgan | 39 42 04 N | 081 43 13 W |
| Lebanon Cemetery | Cemetery | 201 | Vinton | 39 19 54 N | 082 40 48 W |
| Lebanon Cemetery | Cemetery | 232 | Warren | 39 26 18 N | 084 12 50 W |
| Lebanon Christian School | School | 247 | Warren | 39 26 30 N | 084 11 40 W |
| Lebanon Church | Church | 355 | Guernsey | 40 03 42 N | 081 41 35 W |
| Lebanon Church | Church | 197 | Vinton | 39 19 53 N | 082 40 52 W |
| Lebanon City Hall | Building | 221 | Warren | 39 26 00 N | 084 12 28 W |
| Lebanon Commerical Historic District | Park | 223 | Warren | 39 26 03 N | 084 12 27 W |
| Lebanon Correctional Institution | Building | 241 | Warren | 39 26 01 N | 084 17 55 W |
| Lebanon Creek | Stream | | Ashtabula | 41 35 21 N | 080 48 54 W |
| Lebanon East Commercial Industrial Park | Locale | 232 | Warren | 39 26 10 N | 084 11 40 W |
| Lebanon Evangelical Church (historical) | Church | 229 | Fulton | 41 38 32 N | 083 57 20 W |
| Lebanon High School | School | 271 | Warren | 39 27 30 N | 084 12 20 W |
| Lebanon Junction | Locale | 267 | Montgomery | 39 43 55 N | 084 07 29 W |
| Lebanon Post Office | Post Office | 219 | Warren | 39 25 58 N | 084 12 32 W |
| Lebanon Public Library | Building | 219 | Warren | 39 25 59 N | 084 12 31 W |
| Lebanon Public School (historical) | School | 229 | Warren | 39 26 16 N | 084 12 15 W |
| Lebanon Road Church | Church | 249 | Hamilton | 39 17 15 N | 084 17 03 W |
| Lebanon School (historical) | School | 353 | Guernsey | 40 03 50 N | 081 41 58 W |
| Lebanon United Methodist Church | Church | 301 | Morgan | 39 42 03 N | 081 43 15 W |
| Lebanon-Warren County Airport | Airport | 270 | Warren | 39 27 37 N | 084 15 10 W |
| Leblond Park | Park | 149 | Hamilton | 39 07 25 N | 084 28 01 W |
| Lechner School | School | 239 | Cuyahoga | 41 22 12 N | 081 51 56 W |
| Lecta | Populated Place | 208 | Lawrence | 38 40 09 N | 082 22 38 W |
| Lecta Post Office (historical) | Post Office | 211 | Lawrence | 38 40 10 N | 082 22 40 W |
| Ledbetter Road First Church of God | Church | 295 | Greene | 39 39 59 N | 083 56 19 W |
| Ledge Lake | Reservoir | 348 | Medina | 41 12 18 N | 081 43 29 W |
| Ledge Lake Dam | Dam | 348 | Medina | 41 12 18 N | 081 43 29 W |
| Ledgemont Elementary School | School | 388 | Geauga | 41 41 28 N | 081 03 03 W |
| Ledgemont High School | School | 386 | Geauga | 41 41 26 N | 081 02 48 W |
| Ledges Park | Park | 322 | Summit | 41 19 42 N | 081 26 19 W |
| Ledgeview Elementary School | School | 350 | Summit | 41 19 22 N | 081 29 28 W |
| Ledgewood Camp | Locale | 279 | Summit | 41 14 33 N | 081 30 57 W |
| Ledgewood Square Shopping Center | Locale | 283 | Cuyahoga | 41 18 50 N | 081 49 09 W |
| Lee Avenue United Methodist Church | Church | 253 | Franklin | 39 59 36 N | 082 57 49 W |
| Lee Cemetery | Cemetery | 365 | Carroll | 40 32 21 N | 081 01 52 W |
| Lee Cemetery | Cemetery | 392 | Columbiana | 40 44 16 N | 080 48 48 W |
| Lee Cemetery | Cemetery | 291 | Crawford | 40 55 42 N | 083 03 05 W |
| Lee Cemetery | Cemetery | 252 | Hancock | 40 57 00 N | 083 30 49 W |
| Lee Cemetery | Cemetery | 290 | Hardin | 40 37 21 N | 083 29 16 W |
| Lee Chapel African Methodist Episcopal Church | Church | 232 | Hamilton | 39 08 03 N | 084 27 42 W |
| Lee Creek | Stream | | Hamilton | 39 15 25 N | 084 45 42 W |
| Lee Creek | Stream | | Logan | 40 17 06 N | 083 54 12 W |
| Lee Eaton Elementary School | School | 323 | Summit | 41 20 12 N | 081 31 36 W |
| Lee Memorial African Methodist Episcopal Church | Church | 191 | Cuyahoga | 41 32 00 N | 081 36 54 W |
| Lee R Jackson Field | Park | 317 | Summit | 41 04 23 N | 081 30 44 W |
| Lee School (historical) | School | 303 | Marion | 40 39 28 N | 082 58 02 W |