Local governments
M
| Name | Type | Notes |
|---|---|---|
| Macclesfield Borough Council | Borough Council | |
| Maestag UDC | District Council | |
| Magherafelt | District Council | |
| Maidenhead Borough Council | Borough Council | |
| Maidstone UDC | District Council | |
| Maltby Parish Council | Parish Council | |
| Maltby UDC | District Council | |
| Manchester Borough Council | Borough Council | |
| Manchester City Council | City Council | |
| Mansfield Borough Council | Borough Council | |
| Mansfield Woodhouse Urban District Council | District Council | |
| Margate Borough Council | Borough Council | |
| Marylebone Borough Council | London Borough | |
| Matlock Bath Urban District Council | District Council | |
| Mayo County Council | County Council | |
| Meath County Council | County Council | |
| Medway Council | Unitary Council | Created in 1998 during local government reorganisation |
| Merioneth County Council | County Council | |
| Merseyside County Council | County Council | |
| Merthyr Borough Council | Borough Council |