Constituencies: W
47 constituencies
| Constituency | Nation | GSS code |
|---|---|---|
| Wakefield and Rothwell | England | E14001560 |
| Wallasey | England | E14001561 |
| Walsall and Bloxwich | England | E14001562 |
| Walthamstow | England | E14001563 |
| Warrington North | England | E14001564 |
| Warrington South | England | E14001565 |
| Warwick and Leamington | England | E14001566 |
| Washington and Gateshead South | England | E14001567 |
| Watford | England | E14001568 |
| Waveney Valley | England | E14001569 |
| Weald of Kent | England | E14001570 |
| Wellingborough and Rushden | England | E14001571 |
| Wells and Mendip Hills | England | E14001572 |
| Welwyn Hatfield | England | E14001573 |
| West Aberdeenshire and Kincardine | Scotland | S14000111 |
| West Bromwich | England | E14001574 |
| West Dorset | England | E14001575 |
| West Dunbartonshire | Scotland | S14000106 |
| West Ham and Beckton | England | E14001576 |
| West Lancashire | England | E14001577 |
| West Suffolk | England | E14001578 |
| West Tyrone | Northern Ireland | N05000018 |
| West Worcestershire | England | E14001579 |
| Westmorland and Lonsdale | England | E14001580 |
| Weston-super-Mare | England | E14001581 |
| Wetherby and Easingwold | England | E14001582 |
| Whitehaven and Workington | England | E14001583 |
| Widnes and Halewood | England | E14001584 |
| Wigan | England | E14001585 |
| Wimbledon | England | E14001586 |
| Winchester | England | E14001587 |
| Windsor | England | E14001588 |
| Wirral West | England | E14001589 |
| Witham | England | E14001590 |
| Witney | England | E14001591 |
| Woking | England | E14001592 |
| Wokingham | England | E14001593 |
| Wolverhampton North East | England | E14001594 |
| Wolverhampton South East | England | E14001595 |
| Wolverhampton West | England | E14001596 |
| Worcester | England | E14001597 |
| Worsley and Eccles | England | E14001598 |
| Worthing West | England | E14001599 |
| Wrexham | Wales | W07000111 |
| Wycombe | England | E14001600 |
| Wyre Forest | England | E14001601 |
| Wythenshawe and Sale East | England | E14001602 |