- Maxatawny
- Maxwell
- Mayburg
- Mayes
- Mayfair
- Mayfair
- Mayfield
- Mayport
- Maysville
- Maysville
- Maytown
- Maytown
- Mayville
- Maze
- Mazeppa
- Mc Gregor
- McAdams
- McAdoo
- McAdoo Heights
- McAlevys Fort
- McAlisters Crossroads
- McAlisterville
- McBride
- McCalmont
- McCance
- McCandless Township
- McCarroll Corner
- McCartney
- McCartys Corner
- McCaslin