From West End, North Yorkshire to all cities in Durham starting with letter M
- Maiden Law, North Yorkshire
- Mainsforth, North Yorkshire
- Malton, North Yorkshire
- Meadowfield, North Yorkshire
- Medomsley, North Yorkshire
- Medomsley Edge, North Yorkshire
- Merrington Lane, North Yorkshire
- Merrybent, North Yorkshire
- Merryoaks, North Yorkshire
- Metal Bridge, North Yorkshire
- Mickleton, North Yorkshire
- Middle Side, North Yorkshire
- Middlestone, North Yorkshire
- Middlestone Moor, North Yorkshire
- Middleton, North Yorkshire
- Middleton in Teesdale, North Yorkshire
- Middleton One Row, North Yorkshire
- Middleton St George, North Yorkshire
- Middridge, North Yorkshire
- Monk Hesleden, North Yorkshire
- Moorside, North Yorkshire
- Mordon, North Yorkshire
- Morley, North Yorkshire
- Morton Tinmouth, North Yorkshire
- Mount Pleasant, North Yorkshire
- Mount Pleasant, North Yorkshire
- Mountsett, North Yorkshire
- Mowden, North Yorkshire
- Muggleswick, North Yorkshire
- Murton, North Yorkshire