A list of parliamentary constituencies
- Middlesbrough
- Middlesbrough South and East Cleveland
- Milton Keynes North
- Milton Keynes South
- Mitcham and Morden
- Mole Valley
- Monmouth
- Montgomeryshire
- Moray
- Morecambe and Lunesdale
- Morley and Outwood
- Motherwell and Wishaw
- Neath
- New Forest East
- New Forest West
- Newark
- Newbury
- Newcastle upon Tyne Central
- Newcastle upon Tyne East
- Newcastle upon Tyne North
- Newcastle-under-Lyme
- Newport East
- Newport West
- Newton Abbot
- Normanton, Pontefract and Castleford
- North Ayrshire and Arran
- North Cornwall
- North Devon
- North Dorset
- North Durham
- North East Bedfordshire
- North East Cambridgeshire
- North East Derbyshire
- North East Hampshire
- North East Hertfordshire
- North East Somerset
- North Herefordshire
- North Norfolk
- North Shropshire
- North Somerset
