| West Renfrewshire |
Seat of same name existed 1950-1983 |
| West Stirlingshire |
Constituency first used at the February General election of 1974 (28/02/1974). Full name (in Craig 4) Stirlingshire and Clackmannanshire, West Stirlingshire |
| Wetherby and Easingwold |
|
| Wexford [borough] |
|
| Wexford [county] |
|
| Wexford North |
|
| Wexford South |
|
| Weymouth and Melcombe Regis |
|
| Whitby |
Full name (in Craig 2) Yorkshire (North Riding), Whitby |
| Whitehaven |
Full name (in Craig 3,4) Cumberland, Whitehaven |
| Whitehaven and Workington |
|
| Wick District of Burghs |
|
| Wicklow |
|
| Wicklow East |
|
| Wicklow West |
|
| Widnes |
Full name (in Craig 2,3,4) Lancashire, Widnes |
| Widnes and Halewood |
|
| Wigan |
|
| Wigtown District of Burghs |
|
| Wigtownshire |
|
| Willesden East |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Willesden West |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Wilton |
Full name (in Craig 2) Wiltshire, Wilton |
| Wiltshire North |
|
| Wiltshire Northern |
|