| Dagenham |
|
| Dagenham and Rainham |
Created from Dagenham and Hornchurch, Barking. |
| Darlington |
|
| Dartford |
Full name (in Craig 2,3,4) Kent, Dartford. Craig (3) 116 from 1945 revision; Craig (4) 121 until 1955 revision. |
| Dartmouth |
|
| Darwen |
Full name (in Craig 2,3,4) Lancashire, Darwen |
| Daventry |
Full name (in Craig 3) Northamptonshire (and the Soke of Peterborough), Daventry |
| Davyhulme |
|
| Dearne Valley |
Full name (in Craig 4) Yorkshire (West Riding), Dearne Valley |
| Delyn |
|
| Denbigh |
Full name (in Craig 3,4) Denbighshire, Denbigh |
| Denbigh District of Boroughs |
|
| Denbighshire |
|
| Denbighshire Eastern |
|
| Denbighshire Western |
|
| Denton and Reddish |
|
| Deptford |
|
| Derby |
|
| Derby North |
|
| Derbyshire Dales |
|