Constituencies
| Name | Notes |
|---|---|
| Bournemouth West | |
| Bow and Poplar | |
| Bracknell | |
| Bradford | |
| Bradford Central | |
| Bradford East | Previously a constituency in 1885-1974. |
| Bradford East | |
| Bradford North | |
| Bradford South | |
| Bradford West | Constituency of same name also existed 1885-1918. |
| Bradford West | Consituency of same name reformed in 1955. |
| Braintree | |
| Brecon | |
| Brecon and Radnor | |
| Brecon and Radnorshire | |
| Breconshire | |
| Breconshire and Radnorshire | |
| Brent Central | |
| Brent East | |
| Brentford | Full name (in Craig 2) Middlesex, Brentford |