| Glasgow Maryhill (1918 - 2005) |
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| Glasgow Partick (1918 - 1950) |
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| Glasgow Pollok (1918 - 2005) |
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| Glasgow Shettleston (1918 - 2005) |
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| Glasgow Springburn (1918 - 2005) |
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| Grimsby (1918 - 1983) |
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| Hamilton (1918 - 1997) |
Full name (in Craig 3,4) Lanarkshire, Hamilton |
| Hammersmith North (1918 - 1983) |
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| Hammersmith South (1918 - 1955) |
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| Hemel Hempstead (1918 - 1983) |
Full name (in Craig 3,4) Hertfordshire, Hemel Hempstead. Constituency of same name reformed 1997. |
| Hemsworth (1918 - 2024) |
Full name (in Craig 3,4) Yorkshire (West Riding), Hemsworth |
| Hendon (1918 - 1945) |
Full name (in Craig 3) Middlesex, Hendon. Constituency of same name reformed 1997. |
| Heston and Isleworth (1918 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Heywood and Radcliffe (1918 - 1950) |
Full name (in Craig 3) Lancashire, Heywood and Radcliffe |
| Holborn (1918 - 1950) |
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| Holland with Boston (1918 - 1997) |
Full name (in Craig 3,4) Lincolnshire and Rutlandshire (parts of Holland), Holland with Boston |
| Hornchurch (1918 - 2010) |
Full name (in Craig 3) Essex, Hornchurch |
| Horsham and Worthing (1918 - 1945) |
Full name (in Craig 3) Sussex (West), Horsham and Worthing |
| Huntingdonshire (1918 - 1983) |
Constituency of same name also existed 1832-1885. |
| Ilford (1918 - 1950) |
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| Ilford North (1918) |
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| Ilford South (1918) |
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| Inverness (1918 - 1983) |
Full name (in Craig 3,4) Inverness-shire and Ross and Cromarty, Inverness |
| Isle of Ely (1918 - 1983) |
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| Kettering (1918) |
Full name (in Craig 3,4) Northamptonshire (and the Soke of Peterborough), Kettering |