- Mars Hill
- Marsalis
- Marsh Island
- Martello Castle
- Marthaville
- Martin
- Martin
- Martin Island
- Martin Junction
- Martins Island
- Martins Landing
- Martinville
- Maryland
- Maryland
- Maryland
- Maryland Heights
- Mason
- Masters
- Mathews
- Matilda
- Maude
- Maurepas
- Maurice
- Maxie
- Maxies Mobile Valley
- Mayers
- Mayflower
- Mayhew Landing
- Mayna
- Mayo