| Kingston (1885 - 1918) |
Full name (in Craig 2) Surrey, Kingston |
| Kingston upon Hull Central (1885 - 1955) |
Constituency of same name also existed 1974ยน-1983. |
| Kingston upon Hull East (1885) |
a.k.a. Hull East after 1983 |
| Kingston upon Hull West (1885 - 1918) |
Constituency of same name also existed 1955-1997. |
| Kingswinford (1885 - 1950) |
Full name (in Craig 2,3) Staffordshire, Kingswinford |
| Knutsford (1885 - 1983) |
Full name (in Craig 2,3,4) Cheshire, Knutsford |
| Lambeth Brixton (1885 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Lambeth Kennington (1885 - 1950) |
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| Lambeth North (1885 - 1950) |
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| Lambeth Norwood (1885 - 1983) |
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| Lanarkshire Mid (1885 - 1918) |
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| Lanarkshire North Eastern (1885 - 1918) |
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| Lanarkshire North Western (1885 - 1918) |
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| Lancaster (1885 - 1997) |
Full name (in Craig 2,3,4) Lancashire, Lancaster. Constituency of same name also existed 1832-1868. |
| Leeds Central (1885 - 1955) |
Constituency of same name reformed in 1983. |
| Leeds East (1885 - 1918) |
Constituency of same name reformed 1955. |
| Leeds North (1885 - 1955) |
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| Leeds South (1885 - 1983) |
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| Leeds West (1885 - 2024) |
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| Leek (1885 - 1983) |
Full name (in Craig 2,3,4) Staffordshire, Leek |
| Leigh (1885 - 2024) |
Full name (in Craig 2) Lancashire, Leigh |
| Leitrim North (1885 - 1918) |
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| Leitrim South (1885 - 1918) |
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| Lewisham (1885 - 1918) |
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| Limerick East (1885 - 1922) |
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