| Kidderminster |
Full name (in Craig 3,4) Worcestershire, Kidderminster |
| Kildare |
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| Kildare North |
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| Kildare South |
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| Kilkenny [borough] |
|
| Kilkenny [county] |
|
| Kilkenny North |
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| Kilkenny South |
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| Kilmarnock |
Full name (in Craig 3,4) Ayrshire and Bute, Kilmarnock |
| Kilmarnock and Loudoun |
|
| Kilmarnock District of Burghs |
|
| Kincardine and Deeside |
|
| Kincardine and Western |
Full name (in Craig 3) Aberdeenshire and Kincardineshire, Kincardine and Western |
| Kincardineshire |
|
| King's County |
Constituency of same name also existed 1918-1922. This county became County Offaly after 1922. |
| King's County |
Constituency of same name also existed 1832-1885. This county became County Offaly after 1922. |
| King's County Birr |
|
| King's County Tullamore |
|
| King's Lynn |
Full name (in Craig 3,4) Norfolk, King's Lynn. Known as Lynn Regis prior to 1832. |
| Kingston |
Full name (in Craig 2) Surrey, Kingston |