Towns
| State | City/Town | Town Title |
|---|---|---|
| Ohio | Martin | Martin, OH |
| Ohio | Martins Ferry | Martins Ferry, OH |
| Ohio | Martinsburg | Martinsburg, OH |
| Ohio | Martinsville | Martinsville, OH |
| Ohio | Marysville | Marysville, OH |
| Ohio | Mason | Mason, OH |
| Ohio | Massillon | Massillon, OH |
| Ohio | Masury | Masury, OH |
| Ohio | Maumee | Maumee, OH |
| Ohio | Maximo | Maximo, OH |
| Ohio | Maynard | Maynard, OH |
| Ohio | Mc Arthur | Mc Arthur, OH |
| Ohio | Mc Clure | Mc Clure, OH |
| Ohio | Mc Comb | Mc Comb, OH |
| Ohio | Mc Connelsville | Mc Connelsville, OH |
| Ohio | Mc Cutchenville | Mc Cutchenville, OH |
| Ohio | Mc Dermott | Mc Dermott, OH |
| Ohio | Mc Donald | Mc Donald, OH |
| Ohio | Mc Guffey | Mc Guffey, OH |
| Ohio | Mcarthur | Mcarthur, OH |
| Ohio | Mcclure | Mcclure, OH |
| Ohio | Mccomb | Mccomb, OH |
| Ohio | Mcconnelsville | Mcconnelsville, OH |
| Ohio | Mccutchenville | Mccutchenville, OH |
| Ohio | Mcdermott | Mcdermott, OH |