| Cork South (1885 - 1922) |
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| Cork South East (1885 - 1922) |
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| Cork West (1885 - 1922) |
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| Crewe (1885 - 1983) |
Full name (in Craig 2,3,4) Cheshire, Crewe |
| Croydon (1885 - 1918) |
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| Dartford (1885) |
Full name (in Craig 2,3,4) Kent, Dartford. Craig (3) 116 from 1945 revision; Craig (4) 121 until 1955 revision. |
| Darwen (1885 - 1983) |
Full name (in Craig 2,3,4) Lancashire, Darwen |
| Denbighshire Eastern (1885 - 1918) |
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| Denbighshire Western (1885 - 1918) |
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| Deptford (1885 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Derbyshire Mid (1885 - 1918) |
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| Derbyshire North Eastern (1885 - 1950) |
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| Derbyshire Western (1885 - 1950) |
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| Doncaster (1885 - 1983) |
Full name (in Craig 2,3) Yorkshire (West Riding), Doncaster |
| Donegal East (1885 - 1922) |
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| Donegal North (1885 - 1922) |
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| Donegal South (1885 - 1922) |
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| Donegal West (1885 - 1922) |
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| Dorset Eastern (1885 - 1950) |
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| Dorset Northern (1885 - 1950) |
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| Dorset Southern (1885 - 1950) |
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| Dorset Western (1885 - 1950) |
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| Down East (1885 - 1922) |
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| Down North (1885 - 1922) |
Constituency of same name reformed 1950 |
| Down South (1885 - 1922) |
Constituency of same name reformed 1950 |