Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Kreachbaum Ridge | Ridge | 325 | Hocking | 39 29 27 N | 082 32 28 W |
| Krebs Cemetery | Cemetery | 366 | Ashland | 40 58 51 N | 082 18 23 W |
| Krebs Landing | Locale | 195 | Monroe | 39 49 28 N | 080 49 23 W |
| Krebs Ridge | Ridge | 391 | Monroe | 39 49 29 N | 080 51 08 W |
| Kreger Hall | Building | 281 | Butler | 39 30 28 N | 084 44 05 W |
| Kreider Cemetery | Cemetery | 315 | Montgomery | 39 50 29 N | 084 23 14 W |
| Kreider School (historical) | School | 242 | Van Wert | 40 49 47 N | 084 37 48 W |
| Kreischer Quadrangle | Park | 206 | Wood | 41 22 38 N | 083 37 52 W |
| Kreitzer Corner | Populated Place | 302 | Montgomery | 39 45 35 N | 084 26 35 W |
| Krieg Hall | Building | 293 | Clark | 39 55 57 N | 083 48 39 W |
| Krieg Residence Hall | Building | 231 | Seneca | 41 06 44 N | 083 10 07 W |
| Kriner Ridge | Ridge | 264 | Gallia | 38 45 28 N | 082 15 12 W |
| Kriner Ridge | Ridge | 264 | Gallia | 38 45 28 N | 082 14 35 W |
| Krock Cemetery | Cemetery | 256 | Wyandot | 40 49 22 N | 083 22 50 W |
| Kroger Hills State Reserve | Park | 153 | Hamilton | 39 09 00 N | 084 19 30 W |
| Krohn Conservatory | Building | 228 | Hamilton | 39 06 55 N | 084 29 24 W |
| Krohn Ditch | Canal | 202 | Lucas | 41 25 52 N | 083 52 20 W |
| Krohns Acres (subdivision) | Populated Place | 251 | Williams | 41 27 55 N | 084 37 01 W |
| Kronheims Plaza Shopping Center | Locale | 261 | Cuyahoga | 41 22 50 N | 081 47 15 W |
| Kronk Cemetery | Cemetery | 276 | Scioto | 38 55 02 N | 082 50 17 W |
| Krott School (historical) | School | 302 | Morrow | 40 28 06 N | 082 55 48 W |
| Krout Cemetery | Cemetery | 255 | Hancock | 40 54 49 N | 083 33 22 W |
| Krout Elementary School | School | 230 | Seneca | 41 06 05 N | 083 10 27 W |
| Krueck Community Center | Building | 252 | Hamilton | 39 07 43 N | 084 31 24 W |
| Kruggel Airport | Airport | 320 | Medina | 41 08 35 N | 082 01 43 W |
| Krumm Park | Park | 247 | Franklin | 39 59 22 N | 082 55 19 W |
| Krumroy | Populated Place | 339 | Summit | 41 00 54 N | 081 28 23 W |
| Krumroy Post Office (historical) | Post Office | 337 | Summit | 41 00 55 N | 081 28 24 W |
| Kuebelar Ditch | Canal | 193 | Erie | 41 21 22 N | 082 38 05 W |
| Kuhlman Hall | Building | 198 | Hamilton | 39 09 00 N | 084 28 24 W |
| Kuhn Honors House | Building | 229 | Franklin | 39 59 50 N | 083 00 49 W |
| Kuhn School (historical) | School | 333 | Richland | 40 56 40 N | 082 40 04 W |
| Kujowski Central Ditch | Canal | 201 | Lucas | 41 36 18 N | 083 47 03 W |
| Kulas Auditorium | Building | 326 | Cuyahoga | 41 29 25 N | 081 31 52 W |
| Kulas Musical Arts Building | Building | 240 | Cuyahoga | 41 22 04 N | 081 51 09 W |
| Kuliga Park | Park | 265 | Hamilton | 39 09 07 N | 084 40 15 W |
| Kumler Chapel | Church | 263 | Butler | 39 30 08 N | 084 43 35 W |
| Kumler Field | Park | | Butler | 39 28 43 N | 084 29 10 W |
| Kunkers Run | Stream | | Warren | 39 20 29 N | 084 03 13 W |
| Kunkle | Populated Place | 268 | Williams | 41 38 12 N | 084 29 43 W |
| Kunkle Cemetery | Cemetery | 268 | Williams | 41 37 32 N | 084 29 42 W |
| Kunkle United Brethren in Christ Church | Church | 268 | Williams | 41 38 10 N | 084 29 38 W |
| Kuntz Cemetery | Cemetery | 311 | Morgan | 39 44 48 N | 081 39 54 W |
| Kurlin School (historical) | School | 299 | Fairfield | 39 47 07 N | 082 25 44 W |
| Kurtz Cemetery | Cemetery | 335 | Stark | 40 49 53 N | 081 36 43 W |
| Kurtz Park | Park | 262 | Cuyahoga | 41 23 28 N | 081 46 56 W |
| Kyger | Populated Place | 183 | Gallia | 38 58 53 N | 082 09 18 W |
| Kyger Cemetery | Cemetery | 215 | Gallia | 38 59 09 N | 082 09 13 W |
| Kyger Church | Church | 172 | Gallia | 38 57 36 N | 082 07 49 W |
| Kyger Creek | Stream | | Gallia | 38 54 22 N | 082 08 05 W |
| Kyger Creek High School | School | 181 | Gallia | 38 55 43 N | 082 08 05 W |
| Kyger Creek Power Plant | Building | 174 | Gallia | 38 54 52 N | 082 07 44 W |
| Kyger Post Office (historical) | Post Office | 186 | Gallia | 38 58 55 N | 082 09 20 W |
| Kyger Run | Stream | | Hocking | 39 00 22 N | 082 28 13 W |
| Kyger United Methodist Church | Church | 180 | Gallia | 38 58 51 N | 082 09 20 W |
| Kyle Cemetery | Cemetery | 269 | Miami | 39 59 09 N | 084 06 15 W |
| Kyle Elementary School | School | 253 | Miami | 40 02 05 N | 084 12 32 W |
| Kyle Park | Park | 326 | Mahoning | 41 04 43 N | 080 39 31 W |
| Kyle Prairie Creek | Stream | | Van Wert | 40 43 48 N | 084 33 45 W |
| Kyle School (historical) | School | 274 | Miami | 39 59 08 N | 084 06 26 W |
| Kyles | Populated Place | 216 | Butler | 39 24 58 N | 084 24 28 W |
| Kyles Corner Post Office (historical) | Post Office | 328 | Mahoning | 41 04 20 N | 080 39 29 W |
| Kyles Corners | Populated Place | 328 | Mahoning | 41 04 21 N | 080 39 28 W |
| KYW Radio Tower | Tower | 313 | Cuyahoga | 41 23 10 N | 081 41 19 W |
| L A Beeghly Library | Building | 277 | Delaware | 40 17 45 N | 083 04 12 W |
| L and M Mold Corporation Airport | Airport | 332 | Portage | 41 06 10 N | 081 13 50 W |
| L E York Elementary School | School | 338 | Stark | 40 47 46 N | 081 29 33 W |
| L M Berry Center | Building | 203 | Gallia | 38 52 50 N | 082 22 50 W |
| L T Ball Junior High School | School | 269 | Miami | 39 58 08 N | 084 10 59 W |
| L'Alouette Plumee Lake | Reservoir | 216 | Lake | 41 41 32 N | 081 15 27 W |
| La Belle View | Populated Place | 328 | Jefferson | 40 22 17 N | 080 37 27 W |
| La Belle View Church of Christ | Church | 331 | Jefferson | 40 22 07 N | 080 37 44 W |
| La Belle View United Methodist Church | Church | 336 | Jefferson | 40 22 07 N | 080 37 32 W |
| La Boiteaux Pond | Reservoir | | Hamilton | 39 13 34 N | 084 33 29 W |
| La Boiteaux Woods | Park | 211 | Hamilton | 39 11 11 N | 084 32 25 W |
| La Croft | Populated Place | 357 | Columbiana | 40 38 45 N | 080 35 52 W |
| La Croft Elementary School | School | 353 | Columbiana | 40 38 52 N | 080 35 45 W |
| La Due Reservoir | Reservoir | 342 | Geauga | 41 24 24 N | 081 11 11 W |
| La Fayette School | School | 275 | Cuyahoga | 41 28 17 N | 081 35 45 W |
| La Grange Cemetery | Cemetery | 211 | Lawrence | 38 34 00 N | 082 40 21 W |
| La Grange Cemetery | Cemetery | 249 | Lorain | 41 14 17 N | 082 07 34 W |
| La Iglesia De Dios | Church | 311 | Mahoning | 41 05 42 N | 080 37 34 W |
| La Inglesia De Dios | Church | 195 | Lorain | 41 26 32 N | 082 09 40 W |
| La Mar Heights (subdivision) | Populated Place | 199 | Athens | 39 18 43 N | 082 06 12 W |
| La Place Shopping Center | Locale | 308 | Cuyahoga | 41 30 15 N | 081 29 49 W |
| La Porte Cemetery | Cemetery | 234 | Lorain | 41 19 32 N | 082 05 03 W |
| La Porte Post Office (historical) | Post Office | 231 | Lorain | 41 19 50 N | 082 04 42 W |
| La Rue | Populated Place | 282 | Marion | 40 34 35 N | 083 23 05 W |
| La Rue Post Office | Post Office | 282 | Marion | 40 34 36 N | 083 23 06 W |
| La Rue United Methodist Church | Church | 282 | Marion | 40 34 42 N | 083 23 03 W |
| La Valle School | School | 237 | Butler | 39 19 24 N | 084 30 59 W |
| Labadie Reserve | Civil | 246 | Mercer | 40 43 11 N | 084 42 28 W |
| Laboiteaux-Cary Cemetery | Cemetery | 252 | Hamilton | 39 13 05 N | 084 32 60 W |
| Labold Field | Park | 155 | Scioto | 38 43 44 N | 082 58 42 W |
| Labor Temple | Building | 181 | Lucas | 41 39 19 N | 083 32 20 W |
| Labrae High School | School | 275 | Trumbull | 41 14 22 N | 080 52 40 W |
| Labrae Middle School | School | 277 | Trumbull | 41 13 56 N | 080 57 14 W |
| Lacarne | Populated Place | 176 | Ottawa | 41 30 57 N | 083 02 32 W |
| Lacarne Post Office | Post Office | 176 | Ottawa | 41 30 55 N | 083 02 30 W |
| Lacarpe Cemetery | Cemetery | 177 | Ottawa | 41 32 13 N | 083 02 04 W |
| Lacarpe Creek | Stream | | Ottawa | 41 32 25 N | 083 00 02 W |
| Laceyville (historical) | Populated Place | 274 | Harrison | 40 19 20 N | 081 07 54 W |
| Laceyville Post Office (historical) | Post Office | 274 | Harrison | 40 19 20 N | 081 07 54 W |
| Lackery School (historical) | School | 264 | Hancock | 40 53 43 N | 083 35 43 W |
| Lackey Cemetery | Cemetery | 251 | Jackson | 38 57 50 N | 082 28 44 W |
| Lackey Ridge | Ridge | 272 | Jackson | 38 58 11 N | 082 27 30 W |
| Lacourse Pond | Reservoir | 175 | Lucas | 41 40 47 N | 083 19 27 W |
| Lacroft Church of the Nazarene | Church | 356 | Columbiana | 40 38 44 N | 080 35 58 W |
| Ladd | Populated Place | 329 | Pike | 38 59 14 N | 083 10 51 W |
| Ladd Cemetery | Cemetery | 267 | Washington | 39 18 20 N | 081 49 40 W |