1885
| Constituency | Notes |
|---|---|
| Lincolnshire Mid (1868 - 1885) | |
| Lincolnshire Northern (1868 - 1885) | |
| Lincolnshire Southern (1868 - 1885) | |
| Lisburn (1832 - 1885) | |
| Liskeard (1832 - 1885) | |
| Liverpool (1832 - 1885) | |
| Londonderry [county] (1832 - 1885) | Constituency of same name also existed 1922-1983. |
| Longford (1832 - 1885) | Constituency of same name also existed 1918-1922. |
| Louth [county, Ireland] (1832 - 1885) | Constituency of same name also existed 1918-1922. |
| Lyme Regis (1832 - 1885) | |
| Lymington (1832 - 1885) | |
| Mallow (1832 - 1885) | |
| Malmesbury (1832 - 1885) | |
| Malton (1832 - 1885) | |
| Manchester (1832 - 1885) | |
| Marlborough (1832 - 1885) | |
| Marylebone (1832 - 1885) | |
| Mayo (1832 - 1885) | |
| Meath (1832 - 1885) | |
| Middlesex (1832 - 1885) | |
| Midhurst (1832 - 1885) | |
| Monaghan (1832 - 1885) | |
| Monmouthshire (1832 - 1885) | |
| Newport [Isle of Wight] (1832 - 1885) | |
| New Ross (1832 - 1885) |