| King's Lynn (1832 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). Full name (in Craig 3,4) Norfolk, King's Lynn. Known as Lynn Regis prior to 1832. |
| Kingston upon Hull (1832 - 1885) |
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| Kinsale (1832 - 1885) |
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| Kirkcaldy District of Burghs (1832 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). Named Kirkcaldy Burghs in Craig 4 |
| Kirkcudbrightshire (1832 - 1918) |
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| Knaresborough (1832 - 1885) |
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| Lambeth (1832 - 1885) |
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| Lanarkshire (1832 - 1868) |
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| Lancashire Northern (1832 - 1885) |
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| Lancashire Southern (1832 - 1868) |
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| Lancaster (1832 - 1866) |
Disenfranchised for corruption after 1865 General Election. Constituency of same name also existed 1885-1997. |
| Launceston (1832 - 1918) |
Full name (in Craig 2) Cornwall, Launceston |
| Leeds (1832 - 1885) |
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| Leicester (1832 - 1918) |
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| Leicestershire Northern (1832 - 1885) |
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| Leicestershire Southern (1832 - 1885) |
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| Leith District of Burghs (1832 - 1918) |
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| Leitrim (1832 - 1885) |
Constituency of same name also existed 1918-1922. |
| Leominster (1832 - 2010) |
Full name (in Craig 2,3,4) Herefordshire, Leominster |
| Lewes (1832) |
Full name (in Craig 2,3,4) Sussex (East), Lewes |
| Lichfield (1832 - 1950) |
Full name (in Craig 2,3) Staffordshire, Lichfield. Constituency of same name reformed 1997. |
| Limerick [borough] (1832 - 1922) |
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| Limerick [county] (1832 - 1885) |
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| Lincoln (1832) |
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| Lincolnshire, parts of Kesteven and Holland (1832 - 1868) |
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