| Wansbeck |
Constituency of same name also existed 1885-1950 |
| Wansdyke |
|
| Wanstead and Woodford |
Constituency first used at the February General election of 1974 (28/02/1974). Constituency of same name reformed 1983. |
| Wanstead and Woodford |
Constituency of same name also existed 1950-1974ยน. |
| Wantage |
|
| Wareham |
|
| Warley |
|
| Warley East |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Warley West |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Warrington |
|
| Warrington North |
|
| Warrington South |
|
| Warwick |
|
| Warwick and Leamington |
Full name (in Craig 3,4) Warwickshire, Warwick and Leamington |
| Warwickshire North |
|
| Warwickshire Northern |
|
| Warwickshire Southern |
|
| Washington and Gateshead South |
|
| Washington and Sunderland West |
|
| Waterford [borough] |
|
| Waterford [county] |
Constituency of same name also existed 1918-1922. |
| Waterford [county] |
Constituency of same name also existed 1832-1885 |
| Waterford East |
|
| Waterford West |
|
| Waterloo |
Full name (in Craig 3) Lancashire, Waterloo |