Towns
| State | City/Town | Town Title |
|---|---|---|
| Ohio | Milford | Milford, OH |
| Ohio | Milford Center | Milford Center, OH |
| Ohio | Millbury | Millbury, OH |
| Ohio | Milledgeville | Milledgeville, OH |
| Ohio | Miller City | Miller City, OH |
| Ohio | Millersburg | Millersburg, OH |
| Ohio | Millersport | Millersport, OH |
| Ohio | Millfield | Millfield, OH |
| Ohio | Milton Center | Milton Center, OH |
| Ohio | Mineral City | Mineral City, OH |
| Ohio | Mineral Ridge | Mineral Ridge, OH |
| Ohio | Minerva | Minerva, OH |
| Ohio | Minford | Minford, OH |
| Ohio | Mingo | Mingo, OH |
| Ohio | Mingo Junction | Mingo Junction, OH |
| Ohio | Minster | Minster, OH |
| Ohio | Mogadore | Mogadore, OH |
| Ohio | Monclova | Monclova, OH |
| Ohio | Monroe | Monroe, OH |
| Ohio | Monroeville | Monroeville, OH |
| Ohio | Montezuma | Montezuma, OH |
| Ohio | Montpelier | Montpelier, OH |
| Ohio | Montville | Montville, OH |
| Ohio | Morral | Morral, OH |
| Ohio | Morristown | Morristown, OH |