Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Mount Gillion Baptist Church | Church | 205 | Cuyahoga | 41 30 02 N | 081 38 22 W |
| Mount Hall | Building | 236 | Franklin | 40 00 14 N | 083 02 13 W |
| Mount Harrison | Populated Place | 262 | Hamilton | 39 06 54 N | 084 33 37 W |
| Mount Haven Baptist Church | Church | 203 | Cuyahoga | 41 29 58 N | 081 39 39 W |
| Mount Haven Baptist Church | Church | 325 | Summit | 41 04 58 N | 081 33 12 W |
| Mount Healthy | Populated Place | 255 | Hamilton | 39 14 01 N | 084 32 45 W |
| Mount Healthy Branch Cincinnati Post Office | Post Office | | Hamilton | 39 13 58 N | 084 32 52 W |
| Mount Healthy Christian Church | Church | 257 | Hamilton | 39 14 03 N | 084 32 60 W |
| Mount Healthy Heights | Populated Place | 258 | Hamilton | 39 16 13 N | 084 34 05 W |
| Mount Healthy High School | School | 242 | Hamilton | 39 14 22 N | 084 33 23 W |
| Mount Healthy Municipal Building | Building | 256 | Hamilton | 39 14 01 N | 084 32 48 W |
| Mount Healthy Police Department | Building | | Hamilton | 39 14 01 N | 084 32 48 W |
| Mount Healthy Post Office (historical) | Post Office | 257 | Hamilton | 39 14 00 N | 084 32 45 W |
| Mount Healthy School (historical) | School | 356 | Tuscarawas | 40 35 15 N | 081 33 40 W |
| Mount Hebron Baptist Church | Church | 225 | Montgomery | 39 45 27 N | 084 12 42 W |
| Mount Herman Baptist Church | Church | 257 | Franklin | 39 59 51 N | 082 58 36 W |
| Mount Herman Cemetery | Cemetery | 292 | Athens | 39 25 48 N | 081 52 11 W |
| Mount Herman Cemetery | Cemetery | 323 | Guernsey | 40 06 48 N | 081 37 48 W |
| Mount Herman Cemetery | Cemetery | 245 | Meigs | 39 05 38 N | 081 58 06 W |
| Mount Herman Cemetery | Cemetery | 212 | Pickaway | 39 42 04 N | 082 55 17 W |
| Mount Herman Cemetery | Cemetery | 303 | Union | 40 15 58 N | 083 17 44 W |
| Mount Herman Church | Church | 323 | Guernsey | 40 06 50 N | 081 37 46 W |
| Mount Herman Church | Church | 239 | Meigs | 39 05 35 N | 081 58 05 W |
| Mount Hermon Baptist Church | Church | 206 | Cuyahoga | 41 29 30 N | 081 39 31 W |
| Mount Hermon Church | Church | 292 | Athens | 39 25 48 N | 081 52 08 W |
| Mount Hermon Missionary Baptist Church | Church | 231 | Hamilton | 39 08 32 N | 084 30 02 W |
| Mount Hermon Missionary Baptist Church | Church | 241 | Montgomery | 39 45 35 N | 084 14 12 W |
| Mount Hermon School (historical) | School | 301 | Union | 40 16 01 N | 083 17 46 W |
| Mount Heron | Locale | 321 | Darke | 40 08 09 N | 084 41 23 W |
| Mount Heron | Populated Place | 322 | Darke | 40 08 09 N | 084 41 22 W |
| Mount Heron Post Office (historical) | Post Office | 321 | Darke | 40 08 10 N | 084 41 25 W |
| Mount Holly | Populated Place | 268 | Clermont | 39 00 46 N | 084 10 53 W |
| Mount Holly | Populated Place | 239 | Warren | 39 34 18 N | 084 01 57 W |
| Mount Holly Cemetery | Cemetery | 256 | Warren | 39 33 47 N | 084 02 03 W |
| Mount Holly Christian Chapel Cemetery | Cemetery | 268 | Clermont | 39 01 07 N | 084 11 48 W |
| Mount Holly Post Office (historical) | Post Office | 268 | Clermont | 39 00 45 N | 084 10 55 W |
| Mount Holy Church | Church | 336 | Pike | 39 07 30 N | 083 10 18 W |
| Mount Hope | Populated Place | 386 | Holmes | 40 37 26 N | 081 47 04 W |
| Mount Hope Cemetery | Cemetery | 378 | Cuyahoga | 41 25 25 N | 081 28 01 W |
| Mount Hope Cemetery | Cemetery | 348 | Jefferson | 40 24 27 N | 080 49 05 W |
| Mount Hope Cemetery | Cemetery | 309 | Monroe | 39 37 18 N | 081 13 06 W |
| Mount Hope Cemetery | Cemetery | 329 | Richland | 40 58 34 N | 082 36 29 W |
| Mount Hope Cemetery | Cemetery | 212 | Scioto | 38 43 06 N | 082 43 22 W |
| Mount Hope Cemetery | Cemetery | 311 | Summit | 41 02 57 N | 081 31 35 W |
| Mount Hope Church | Church | 206 | Hamilton | 39 14 50 N | 084 43 14 W |
| Mount Hope Church | Church | 280 | Harrison | 40 20 51 N | 081 07 35 W |
| Mount Hope Church | Church | 254 | Lawrence | 38 29 02 N | 082 25 25 W |
| Mount Hope Church | Church | 308 | Monroe | 39 37 19 N | 081 13 06 W |
| Mount Hope Church | Church | 206 | Scioto | 38 43 06 N | 082 43 19 W |
| Mount Hope Church | Church | 332 | Washington | 39 29 33 N | 081 13 31 W |
| Mount Hope Church Cemetery | Cemetery | 341 | Washington | 39 29 30 N | 081 13 30 W |
| Mount Hope Church of Jesus Christ | Church | 187 | Lucas | 41 39 26 N | 083 33 16 W |
| Mount Hope Park Cemetery | Cemetery | 331 | Mahoning | 41 07 36 N | 080 36 17 W |
| Mount Hope Pet Cemetery | Cemetery | 201 | Hamilton | 39 15 21 N | 084 43 40 W |
| Mount Hope Post Office | Post Office | 387 | Holmes | 40 37 25 N | 081 47 04 W |
| Mount Hope School (historical) | School | 254 | Mercer | 40 37 33 N | 084 30 47 W |
| Mount Hope School (historical) | School | 254 | Mercer | 40 37 27 N | 084 30 46 W |
| Mount Hope School (historical) | School | 326 | Scioto | 38 54 50 N | 083 10 21 W |
| Mount Hope School (historical) | School | 330 | Stark | 40 41 40 N | 081 28 49 W |
| Mount Hope United Holy Church of America | Church | 195 | Cuyahoga | 41 30 55 N | 081 38 09 W |
| Mount Horeb Cemetery | Cemetery | 293 | Belmont | 39 54 53 N | 081 02 58 W |
| Mount Horeb Cemetery | Cemetery | 303 | Perry | 39 47 09 N | 082 08 06 W |
| Mount Hygiene School (historical) | School | 270 | Clermont | 38 54 45 N | 084 07 58 W |
| Mount Igorott School (historical) | School | 319 | Highland | 39 18 53 N | 083 33 56 W |
| Mount Ives | Summit | 351 | Ross | 39 21 52 N | 082 56 35 W |
| Mount Ivory Baptist Church | Church | 241 | Franklin | 39 57 24 N | 082 57 54 W |
| Mount Jefferson | Populated Place | 292 | Shelby | 40 14 33 N | 084 19 60 W |
| Mount Jefferson | Summit | 293 | Shelby | 40 14 35 N | 084 20 04 W |
| Mount Jesse School (historical) | School | 344 | Champaign | 40 14 45 N | 083 55 10 W |
| Mount Joy | Populated Place | 326 | Scioto | 38 57 05 N | 083 10 25 W |
| Mount Joy Cemetery | Cemetery | 347 | Scioto | 38 57 01 N | 083 12 11 W |
| Mount Joy Post Office (historical) | Post Office | 326 | Scioto | 38 57 05 N | 083 10 25 W |
| Mount Latham Cemetery | Cemetery | 323 | Pike | 39 08 03 N | 083 06 55 W |
| Mount Lebanon Baptist Chapel | Church | 167 | Scioto | 38 44 37 N | 082 57 59 W |
| Mount Lebanon Baptist Church | Church | 311 | Clark | 39 54 14 N | 083 48 14 W |
| Mount Lebanon Baptist Church | Church | 216 | Cuyahoga | 41 29 51 N | 081 36 39 W |
| Mount Lebanon Baptist Church | Church | 259 | Franklin | 40 00 01 N | 082 58 47 W |
| Mount Lebanon Baptist Church | Church | 297 | Summit | 41 06 22 N | 081 31 16 W |
| Mount Lebanon Cemetery | Cemetery | 197 | Sandusky | 41 18 56 N | 083 04 45 W |
| Mount Leigh (historical) | Populated Place | 263 | Adams | 38 57 20 N | 083 34 25 W |
| Mount Leigh Cemetery | Cemetery | 269 | Adams | 38 57 24 N | 083 34 30 W |
| Mount Leigh Post Office (historical) | Post Office | 263 | Adams | 38 57 20 N | 083 34 25 W |
| Mount Liberty | Populated Place | 370 | Knox | 40 20 48 N | 082 37 49 W |
| Mount Liberty Baptist Church | Church | 302 | Summit | 41 03 14 N | 081 32 14 W |
| Mount Liberty Cemetery | Cemetery | 391 | Knox | 40 20 48 N | 082 38 09 W |
| Mount Liberty Chapel Cemetery | Cemetery | 285 | Washington | 39 20 03 N | 081 49 48 W |
| Mount Liberty Church | Church | 283 | Washington | 39 20 03 N | 081 49 51 W |
| Mount Liberty Post Office | Post Office | 372 | Knox | 40 20 50 N | 082 37 50 W |
| Mount Liberty School (historical) | School | 280 | Brown | 38 58 09 N | 084 00 34 W |
| Mount Logan | Summit | 378 | Ross | 39 21 20 N | 082 56 51 W |
| Mount Logan Middle School | School | 189 | Ross | 39 20 15 N | 082 57 29 W |
| Mount Logan School | School | 189 | Ross | 39 20 17 N | 082 57 32 W |
| Mount Lookout | Populated Place | 178 | Hamilton | 39 07 44 N | 084 25 49 W |
| Mount Lookout | Summit | 318 | Auglaize | 40 35 52 N | 084 01 41 W |
| Mount Lookout Cemetery | Cemetery | 310 | Auglaize | 40 35 56 N | 084 01 35 W |
| Mount Lookout Church of the Nazarene | Church | 205 | Hamilton | 39 08 00 N | 084 25 41 W |
| Mount Lookout Post Office (historical) | Post Office | 179 | Hamilton | 39 07 45 N | 084 25 50 W |
| Mount Mariah Cemetery | Cemetery | 363 | Logan | 40 15 43 N | 083 35 16 W |
| Mount Marie Heights (subdivision) | Populated Place | 331 | Stark | 40 47 50 N | 081 26 33 W |
| Mount Miserable | Summit | 453 | Logan | 40 21 21 N | 083 41 44 W |
| Mount Moriah Baptist Church | Church | 191 | Cuyahoga | 41 32 15 N | 081 37 09 W |
| Mount Moriah Baptist Church | Church | 231 | Franklin | 39 57 27 N | 082 57 07 W |
| Mount Moriah Baptist Church | Church | 180 | Hamilton | 39 14 18 N | 084 27 20 W |
| Mount Moriah Baptist Church | Church | 290 | Montgomery | 39 45 06 N | 084 15 58 W |
| Mount Moriah Cemetery | Cemetery | 280 | Clermont | 39 04 10 N | 084 17 25 W |
| Mount Moriah Cemetery | Cemetery | 372 | Jefferson | 40 18 17 N | 080 48 49 W |
| Mount Moriah Cemetery | Cemetery | 426 | Monroe | 39 39 28 N | 080 56 55 W |
| Mount Moriah Church | Church | 371 | Jefferson | 40 18 17 N | 080 48 51 W |
| Mount Moriah Fire Baptized Holiness Church | Church | 320 | Mahoning | 41 04 29 N | 080 35 25 W |
| Mount Moriah House of Prayer | Church | 322 | Mahoning | 41 06 50 N | 080 36 06 W |