From Llantrisant, Gwent to all cities in Gloucestershire starting with letter M
- Maisemore, Gwent
- Malswick, Gwent
- Mangotsfield, Gwent
- Marle Hill, Gwent
- Marsh Common, Gwent
- Marsh Lane, Gwent
- Marshfield, Gwent
- Marston Hill, Gwent
- Matson, Gwent
- Maugersbury, Gwent
- May Hill Village, Gwent
- Mayshill, Gwent
- Meysey Hampton, Gwent
- Mickleton, Gwent
- Middle Duntisbourne, Gwent
- Middle Street, Gwent
- Middle Wick, Gwent
- Middleyard, Gwent
- Milbury Heath, Gwent
- Milbury Heath, Gwent
- Mile End, Gwent
- Milkwall, Gwent
- Millbottom, Gwent
- Milton End, Gwent
- Minchinhampton, Gwent
- Minsterworth, Gwent
- Miserden, Gwent
- Mitcheldean, Gwent
- Mitton, Gwent
- Montpellier, Gwent
- Moor End, Gwent
- Moor End, Gwent
- Moorend, Gwent
- Moorslade, Gwent
- Moreton in Marsh, Gwent
- Moreton Valence, Gwent
- Mork, Gwent
- Morton, Gwent
- Mount Hill, Gwent
- Mount Pleasant, Gwent
- Mount Pleasant, Gwent
- Murrells End, Gwent