| Huntingdon |
Full name (in Craig 2) Huntingdonshire, Huntingdon. Constituency of same name reformed 1983. |
| Huntingdonshire |
Constituency of same name also existed 1918-1983. |
| Huntingdonshire |
Constituency of same name also existed 1832-1885. |
| Huyton |
Full name (in Craig 4) Lancashire, Huyton |
| Hyde |
Full name (in Craig 2) Cheshire, Hyde |
| Hyndburn |
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| Hythe |
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| Ilford |
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| Ilford North |
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| Ilford South |
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| Ilkeston |
Full name (in Craig 2,3,4) Derbyshire, Ilkeston |
| Ince |
Full name (in Craig 2,3,4) Lancashire, Ince |
| Inverclyde |
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| Inverclyde and Renfrewshire West |
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| Inverness |
Full name (in Craig 3,4) Inverness-shire and Ross and Cromarty, Inverness |
| Inverness District of Burghs |
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| Inverness East, Nairn and Lochaber |
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| Inverness, Nairn and Lochaber |
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| Inverness, Nairn, Badenoch and Strathspey |
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| Inverness-shire |
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| Inverness, Skye and West Ross-shire |
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| Ipswich |
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| Isle of Ely |
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| Isle of Thanet |
Constituency first used at the February General election of 1974 (28/02/1974). Full name (in Craig 2,3,4) Kent, Isle of Thanet |
| Isle of Wight |
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