| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Muchinippi (historical) | city | Ohio | United States | 40.44 | -83.95 | 997 | |
| Mud Run | city | Ohio | United States | 39.88 | -81.38 | 990 | |
| Mudlick | city | Ohio | United States | 39.62 | -84.39 | 830 | |
| Mudsock | city | Ohio | United States | 40.00 | -83.18 | 954 | |
| Mulberry | city | Ohio | United States | 39.19 | -84.24 | 898 | |
| Mulberry Grove | city | Ohio | United States | 40.10 | -84.33 | 944 | |
| Mulga | city | Ohio | United States | 39.12 | -82.47 | 830 | |
| Mumper Estates | city | Ohio | United States | 40.01 | -83.72 | 1040 | |
| Muncie Hollow | city | Ohio | United States | 41.39 | -83.08 | 830 | |
| Mungen | city | Ohio | United States | 41.27 | -83.65 | 830 | |
| Municipio de Herencia | city | Ohio | United States | 39.35 | -84.56 | 830 | |
| Munks Corners | city | Ohio | United States | 39.92 | -82.92 | 830 | |
| Munroe Falls | city | Ohio | United States | 41.14 | -81.44 | 1036 | |
| Munson Hill | city | Ohio | United States | 41.80 | -80.83 | 830 | |
| Munsville (historical) | city | Ohio | United States | 40.34 | -81.80 | 977 | |
| Muntanna | city | Ohio | United States | 40.98 | -84.30 | 830 | |
| Murat (historical) | city | Ohio | United States | 41.06 | -84.38 | 830 | |
| Murdock | city | Ohio | United States | 39.29 | -84.21 | 830 | |
| Murlin Heights | city | Ohio | United States | 39.86 | -84.20 | 921 | |
| Murphy | city | Ohio | United States | 39.42 | -81.20 | 830 | |
| Murphys | city | Ohio | United States | 41.08 | -83.73 | 830 | |
| Murray City | city | Ohio | United States | 39.51 | -82.16 | 830 | |
| Museville | city | Ohio | United States | 39.79 | -81.80 | 830 | |
| Muskingum (historical) | city | Ohio | United States | 39.56 | -81.22 | 830 | |
| Muskingum (historical) | city | Ohio | United States | 39.89 | -82.02 | 898 | |
| Muskingum Terrace | city | Ohio | United States | 39.44 | -81.46 | 830 | |
| Musselman | city | Ohio | United States | 39.37 | -83.14 | 830 | |
| Muttonville | city | Ohio | United States | 39.66 | -84.69 | 1030 | |
| Mutual | city | Ohio | United States | 40.08 | -83.64 | 1217 |