Constituencies
| Name | Notes |
|---|---|
| Maidenhead | |
| Maidstone | Full name (in Craig 3,4) Kent, Maidstone |
| Maidstone and Malling | |
| Maidstone and The Weald | |
| Makerfield | |
| Maldon | Full name (in Craig 2,3,4) Essex, Maldon |
| Maldon | |
| Maldon and Chelmsford East | |
| Mallow | |
| Malmesbury | |
| Malton | |
| Manchester | |
| Manchester, Ardwick | |
| Manchester, Blackley | |
| Manchester Central | Constituency first used at the February General election of 1974 (28/02/1974). |
| Manchester, Cheetham | Constituency first used at the February General election of 1974 (28/02/1974). |
| Manchester, Clayton | |
| Manchester East | |
| Manchester, Exchange | Constituency first used at the February General election of 1974 (28/02/1974). |
| Manchester, Gorton | |
| Manchester, Hulme | |
| Manchester, Moss Side | |
| Manchester North | |
| Manchester North East | |
| Manchester North West |