Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Minerva Junction | Populated Place | 309 | Carroll | 40 42 42 N | 081 09 05 W |
| Minerva Lake Golf Club | Locale | 255 | Franklin | 40 04 34 N | 082 56 19 W |
| Minerva Park | Populated Place | 258 | Franklin | 40 04 35 N | 082 56 38 W |
| Minerva Park United Methodist Church | Church | 267 | Franklin | 40 04 13 N | 082 57 07 W |
| Minerva Post Office | Post Office | 319 | Stark | 40 43 44 N | 081 06 14 W |
| Minerva Post Office | Post Office | 321 | Stark | 40 43 45 N | 081 06 19 W |
| Minerva Town Hall | Building | 319 | Stark | 40 43 45 N | 081 06 11 W |
| Mines Elementary School | School | 321 | Trumbull | 41 14 53 N | 080 43 46 W |
| Mineyahta-on-the Bay | Populated Place | 176 | Ottawa | 41 30 48 N | 082 44 30 W |
| Minford | Populated Place | 200 | Scioto | 38 51 32 N | 082 51 44 W |
| Minford Elementary School | School | 200 | Scioto | 38 51 29 N | 082 51 48 W |
| Minford High School | School | 195 | Scioto | 38 51 28 N | 082 51 46 W |
| Minford Post Office | Post Office | 199 | Scioto | 38 51 30 N | 082 51 45 W |
| Minges Farm Cemetery | Cemetery | 162 | Hamilton | 39 11 46 N | 084 45 05 W |
| Mingo | Populated Place | 367 | Champaign | 40 12 29 N | 083 38 18 W |
| Mingo Bottom | Flat | 204 | Jefferson | 40 18 25 N | 080 36 44 W |
| Mingo First United Methodist Church | Church | 229 | Jefferson | 40 19 11 N | 080 36 33 W |
| Mingo High School | School | 219 | Jefferson | 40 19 10 N | 080 36 30 W |
| Mingo Junction | Populated Place | 239 | Jefferson | 40 19 18 N | 080 36 35 W |
| Mingo Junction Cemetery | Cemetery | 299 | Jefferson | 40 19 39 N | 080 37 00 W |
| Mingo Junction Post Office | Post Office | 205 | Jefferson | 40 19 12 N | 080 36 25 W |
| Mingo Park | Park | 263 | Delaware | 40 18 19 N | 083 03 41 W |
| Mingo Post Office | Post Office | 366 | Champaign | 40 12 30 N | 083 38 20 W |
| Mingo Sportsmens Club Lake Number | Reservoir | 322 | Jefferson | 40 18 30 N | 080 44 29 W |
| Mingo Sportsmens Club Lake Number | Reservoir | 316 | Jefferson | 40 18 42 N | 080 44 59 W |
| Mini-Mall Shopping Center | Locale | 303 | Montgomery | 39 38 06 N | 084 13 37 W |
| Minich Ditch | Canal | 265 | Clark | 39 54 13 N | 083 55 43 W |
| Minit-Men Incorporated Heliport | Airport | 221 | Franklin | 39 59 50 N | 083 05 07 W |
| Mink Hollow Bridge | Bridge | 268 | Fairfield | 39 38 20 N | 082 38 60 W |
| Mink Street School (historical) | School | 343 | Knox | 40 17 28 N | 082 34 23 W |
| Minkers Run | Stream | | Athens | 39 25 38 N | 082 12 55 W |
| Minksville Cemetery | Cemetery | 289 | Harrison | 40 15 37 N | 081 08 13 W |
| Minksville Church | Church | 278 | Harrison | 40 15 30 N | 081 08 11 W |
| Minnehaha Falls | Falls | 297 | Portage | 41 19 33 N | 081 02 16 W |
| Minnehan Bend | Populated Place | 265 | Ross | 39 12 38 N | 083 09 10 W |
| Minnehan Run | Stream | | Ross | 39 13 30 N | 083 09 31 W |
| Minnewauken Island | Island | 304 | Logan | 40 29 08 N | 083 52 38 W |
| Minnich Cemetery | Cemetery | 293 | Montgomery | 39 54 24 N | 084 19 11 W |
| Minnich Hall | Building | 270 | Butler | 39 30 20 N | 084 44 02 W |
| Minnich School (historical) | School | 311 | Darke | 40 03 02 N | 084 29 23 W |
| Minnow Creek | Stream | | Sandusky | 41 20 18 N | 083 06 45 W |
| Minnow Pond | Lake | 340 | Geauga | 41 21 19 N | 081 17 27 W |
| Minoque School (historical) | School | 296 | Madison | 40 04 06 N | 083 20 34 W |
| Minque Hollow | Valley | | Adams | 38 44 27 N | 083 21 01 W |
| Minque Run | Stream | | Adams | 38 44 34 N | 083 21 15 W |
| Minster | Populated Place | 294 | Auglaize | 40 23 35 N | 084 22 34 W |
| Minster Elementary School | School | 295 | Auglaize | 40 23 43 N | 084 22 47 W |
| Minster High School | School | 293 | Auglaize | 40 24 03 N | 084 22 45 W |
| Minster Industrial Park | Locale | 294 | Auglaize | 40 23 04 N | 084 23 17 W |
| Minster Machine Centennial Park | Park | 295 | Auglaize | 40 23 35 N | 084 22 42 W |
| Minster Post Office | Post Office | 294 | Auglaize | 40 23 34 N | 084 22 53 W |
| Minton Cemetery | Cemetery | 207 | Butler | 39 24 21 N | 084 39 14 W |
| Minton Cemetery | Cemetery | 280 | Delaware | 40 21 54 N | 083 14 20 W |
| Mints Pine Acres Lake | Reservoir | 320 | Columbiana | 40 48 00 N | 080 38 35 W |
| Mints Pine Acres Lake Dam | Dam | 320 | Columbiana | 40 48 00 N | 080 38 35 W |
| Miracle Lane Plaza Shopping Center | Locale | 276 | Tuscarawas | 40 30 32 N | 081 27 49 W |
| Miracle Lane Shopping Center | Locale | 287 | Montgomery | 39 48 05 N | 084 15 18 W |
| Miracle Lane Shopping Center | Locale | 273 | Montgomery | 39 47 18 N | 084 14 27 W |
| Miracle Mile (subdivision) | Populated Place | 316 | Clark | 39 56 50 N | 083 46 60 W |
| Miracle Park | Park | 174 | Lucas | 41 41 04 N | 083 30 31 W |
| Miracle Revival Center | Church | 228 | Williams | 41 28 38 N | 084 32 19 W |
| Miracle Revival Fellowship | Church | 315 | Summit | 41 03 15 N | 081 31 19 W |
| Miracle School (historical) | School | 424 | Morrow | 40 35 40 N | 082 42 29 W |
| Miracle Temple Church | Church | 190 | Hamilton | 39 09 50 N | 084 26 48 W |
| Miranda Pond | Reservoir | 320 | Medina | 41 09 36 N | 081 48 11 W |
| Miranda Pond Dam | Dam | 320 | Medina | 41 09 36 N | 081 48 11 W |
| Miranda Run | Stream | | Brown | 38 47 14 N | 083 58 49 W |
| Miranda Run | Stream | | Brown | 38 55 41 N | 083 56 06 W |
| Miriam Hall | Building | 245 | Montgomery | 39 44 26 N | 084 10 36 W |
| Mirror Lake | Lake | 271 | Allen | 40 45 57 N | 084 00 33 W |
| Mirror Lake | Reservoir | 225 | Franklin | 39 59 53 N | 083 00 52 W |
| Mirror Lake | Reservoir | 204 | Hamilton | 39 06 48 N | 084 29 40 W |
| Mirror Lake | Reservoir | 358 | Medina | 41 08 12 N | 081 42 59 W |
| Mirror Lake Dam | Dam | 358 | Medina | 41 08 12 N | 081 42 59 W |
| Misco | Populated Place | 244 | Perry | 39 43 40 N | 082 04 26 W |
| Misco Post Office (historical) | Post Office | 243 | Perry | 39 43 40 N | 082 04 25 W |
| Misers Run | Stream | | Wayne | 40 39 50 N | 081 39 40 W |
| Mishler | Populated Place | 352 | Portage | 40 59 58 N | 081 21 42 W |
| Mishler Post Office (historical) | Post Office | 352 | Portage | 40 59 55 N | 081 21 44 W |
| Miskimen Family Cemetery | Cemetery | 258 | Coshocton | 40 12 23 N | 081 41 08 W |
| Misner Corners | Populated Place | 345 | Mahoning | 41 02 09 N | 080 47 49 W |
| Mission Cemetery | Cemetery | 287 | Washington | 39 22 57 N | 081 50 22 W |
| Mission Cemetery | Cemetery | 254 | Wyandot | 40 50 11 N | 083 16 43 W |
| Mission Cristianos Unidos | Church | 312 | Mahoning | 41 04 22 N | 080 35 28 W |
| Mission Field | Airport | 271 | Ross | 39 25 42 N | 082 49 22 W |
| Mission House of Prayer | Church | 250 | Hamilton | 39 07 37 N | 084 29 15 W |
| Mission Time Holiness Church | Church | 236 | Hancock | 41 02 25 N | 083 39 15 W |
| Missionary Baptist Church | Church | 353 | Richland | 40 47 26 N | 082 32 02 W |
| Missionary Church | Church | 200 | Butler | 39 19 27 N | 084 32 27 W |
| Missionary Church | Church | 256 | Clermont | 39 12 54 N | 084 14 25 W |
| Missionary Church | Church | 295 | Cuyahoga | 41 18 11 N | 081 49 55 W |
| Missionary Church | Church | 177 | Lawrence | 38 27 14 N | 082 21 05 W |
| Missionary Church | Church | 234 | Montgomery | 39 44 16 N | 084 14 05 W |
| Missionary Church of Christ | Church | 216 | Defiance | 41 16 35 N | 084 20 55 W |
| Missionary Fellowship Church | Church | 226 | Montgomery | 39 45 17 N | 084 12 50 W |
| Missionary Island | Island | 189 | Lucas | 41 28 15 N | 083 44 60 W |
| Missionary Island State Wildlife Area | Park | 188 | Lucas | 41 28 26 N | 083 44 55 W |
| Missionary Temple | Church | 324 | Summit | 41 05 31 N | 081 33 23 W |
| Mississinawa Valley Elementary School | School | 336 | Darke | 40 12 03 N | 084 48 05 W |
| Mississinawa Valley High School | School | 318 | Darke | 40 13 18 N | 084 44 56 W |
| Mississinawa Valley Middle School | School | 318 | Darke | 40 13 18 N | 084 44 52 W |
| Missler-Bellevue Airport | Airport | 235 | Sandusky | 41 17 10 N | 082 51 60 W |
| Missouri Ditch | Canal | 314 | Fayette | 39 36 01 N | 083 33 13 W |
| Mitchaw | Populated Place | 207 | Lucas | 41 42 07 N | 083 45 44 W |
| Mitchaw Post Office (historical) | Post Office | 207 | Lucas | 41 42 05 N | 083 45 45 W |
| Mitchell Airport | Airport | 288 | Union | 40 08 14 N | 083 13 05 W |
| Mitchell Cemetery | Cemetery | 302 | Clinton | 39 32 05 N | 083 50 54 W |
| Mitchell Center Shopping Center | Locale | 302 | Summit | 41 06 34 N | 081 34 06 W |
| Mitchell Chapel African Methodist Episcopal Church | Church | 392 | Richland | 40 45 12 N | 082 31 18 W |
| Mitchell Hall | Building | 308 | Greene | 39 42 56 N | 083 52 37 W |