| Glasgow College (1885 - 1918) |
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| Glasgow St Rollox (1885 - 1950) |
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| Glasgow Tradeston (1885 - 1955) |
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| Gorton (1885 - 1918) |
Full name (in Craig 2) Lancashire, Gorton |
| Govan (1885 - 1918) |
Full name (in Craig 2) Lanarkshire, Govan |
| Gower (1885) |
Full name (in Craig 2,3,4) Glamorganshire, Gower |
| Hackney Central (1885 - 1983) |
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| Hackney North (1885 - 1950) |
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| Hackney South (1885 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Hallamshire (1885 - 1918) |
Full name (in Craig 2) Yorkshire (West Riding), Hallamshire |
| Hammersmith (1885 - 1918) |
Constituency of same name also existed 1983-1997. |
| Hampstead (1885 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Handsworth (1885 - 1918) |
Full name (in Craig 2) Staffordshire, Handsworth |
| Hanley (1885 - 1918) |
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| Harborough (1885 - 2024) |
Full name (in Craig 2,3,4) Leicestershire, Harborough |
| Harrow (1885 - 1945) |
Full name (in Craig 2,3) Middlesex, Harrow |
| Henley (1885 - 2024) |
Full name (in Craig 2,3,4) Oxfordshire, Henley |
| Hexham (1885) |
Full name (in Craig 2,3,4) Northumberland, Hexham |
| Heywood (1885 - 1918) |
Full name (in Craig 2) Lancashire, Heywood |
| High Peak (1885) |
Full name (in Craig 2,3,4) Derbyshire, High Peak |
| Hitchin (1885 - 1983) |
Full name (in Craig 2,3,4) Hertfordshire, Hitchin |
| Holderness (1885 - 1950) |
Full name (in Craig 2,3) Yorkshire (East Riding), Holderness |
| Holmfirth (1885 - 1918) |
Full name (in Craig 2) Yorkshire (West Riding), Holmfirth |
| Honiton (1885 - 1997) |
Full name (in Craig 2,3,4) Devon, Honiton. Constituency of same name existed 1832-1868. |
| Horncastle (1885 - 1983) |
Full name (in Craig 2,3,4) Lincolnshire and Rutlandshire (parts of Lindsey), Horncastle |