| Louth South [county, Ireland] |
|
| Lowestoft |
Full name (in Craig 2,3,4) Suffolk, Lowestoft |
| Lowestoft |
|
| Ludlow |
Full name (in Craig 2,3,4) Shropshire, Ludlow |
| Luton |
Constituency first used at the February General election of 1974 (28/02/1974). Full name (in Craig 2,3) Bedfordshire, Luton |
| Luton East |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Luton North |
|
| Luton South |
|
| Luton South and South Bedfordshire |
|
| Luton West |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Lyme Regis |
|
| Lymington |
|