1983
| Constituency | Notes |
|---|---|
| Inverness, Nairn and Lochaber (1983 - 1997) | |
| Islwyn (1983 - 2024) | |
| Kensington (1983 - 1997) | |
| Kent Mid (1983 - 1997) | Seat of same name existed 1868-1885. |
| Kilmarnock and Loudoun (1983) | |
| Kincardine and Deeside (1983 - 1997) | |
| Kingston upon Hull North (1983 - 2024) | Constituency of same name existed 1950-1974ยน. Also known as Hull North. |
| Knowsley North (1983 - 1997) | |
| Knowsley South (1983 - 2010) | |
| Lagan Valley (1983) | |
| Lancashire West (1983) | |
| Langbaurgh (1983 - 1997) | |
| Leeds Central (1983 - 2024) | Constituency of same name also existed 1885-1955. |
| Leeds South and Morley (1983 - 1997) | |
| Leicestershire North West (1983) | |
| Linlithgow (1983 - 2005) | |
| Linsey East (1983 - 1997) | |
| Littleborough and Saddleworth (1983 - 1997) | |
| Liverpool, Broadgreen (1983 - 1997) | |
| Liverpool, Mossley Hill (1983 - 1997) | |
| Liverpool, Riverside (1983) | |
| Livingston (1983) | |
| Londonderry East (1983) | |
| Luton North (1983) | |
| Luton South (1983 - 2024) |