| Leicester East |
Constituency first used at the February General election of 1974 (28/02/1974). Constituency of same name also existed 1918-1950. |
| Leicester East |
Constituency of same name reformed 1974¹. |
| Leicester North East |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Leicester North West |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Leicestershire Northern |
|
| Leicestershire North West |
|
| Leicestershire Southern |
|
| Leicester South |
Constituency first used at the February General election of 1974 (28/02/1974). Seat of same name existed 1918-1950 |
| Leicester South |
Seat of same name reformed 1974¹ |
| Leicester South East |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Leicester South West |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Leicester West |
Constituency first used at the February General election of 1974 (28/02/1974). Constituency of same name also existed 1918-1950 |
| Leicester West |
|
| Leigh |
Full name (in Craig 2) Lancashire, Leigh |
| Leigh and Atherton |
|
| Leith |
|
| Leith District of Burghs |
|
| Leitrim |
Constituency of same name also existed 1918-1922. |
| Leitrim |
Constituency of same name also existed 1832-1885. |
| Leitrim North |
|
| Leitrim South |
|
| Leominster |
Full name (in Craig 2,3,4) Herefordshire, Leominster |
| Lewes |
Full name (in Craig 2,3,4) Sussex (East), Lewes |
| Lewisham |
|
| Lewisham, Deptford |
Constituency first used at the February General election of 1974 (28/02/1974). |