| 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 |
|
| Lewisham East |
Constituency of same name reformed 1974ยน. |
| Lewisham East |
Constituency of same name also existed 1918-1950. |
| Lewisham North |
|
| Lewisham South |
|
| Lewisham West |
|
| Leyton |
|
| Leyton and Wanstead |
|
| Leyton East |
|
| Leyton West |
|
| Lichfield |
Constituency of same name also existed 1832-1950. |
| Lichfield |
Full name (in Craig 2,3) Staffordshire, Lichfield. Constituency of same name reformed 1997. |