| Windsor |
Constituency of same name also existed 1832- |
| Windsor |
Constituency first used at the February General election of 1974 (28/02/1974). Full name (in Craig 3,4) Berkshire, Windsor. Constituency of same name reformed 1997. |
| Windsor and Maidenhead |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Wirral |
Full name (in Craig 2,3,4) Cheshire, Wirral |
| Wirral South |
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| Wirral West |
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| Wisbech |
Full name (in Craig 2) Cambridgeshire, Wisbech |
| Witham |
New constituency formed due to increased population in the area |
| Witney |
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| Woking |
Full name (in Craig 4) Surrey, Woking |
| Wokingham |
Full name (in Craig 2,4) Berkshire, Wokingham |
| Wolverhampton |
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| Wolverhampton Bilston |
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| Wolverhampton East |
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| Wolverhampton North East |
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| Wolverhampton South |
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| Wolverhampton South East |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Wolverhampton South West |
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| Wolverhampton West |
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| Wolverhampton West |
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| Woodbridge |
Full name (in Craig 2,3) Suffolk (East), Woodbridge. Also known as Suffolk South East. |
| Woodford |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Wood Green |
Constituency first used at the February General election of 1974 (28/02/1974). Full name (in Craig 3) Middlesex, Wood Green |
| Woodspring |
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| Woodstock |
Full name (in Craig 2) Oxfordshire, Woodstock |