| Bradford West |
Constituency of same name also existed 1885-1918. |
| Braintree |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Brecon |
|
| Brecon and Radnor |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Brecon and Radnorshire |
|
| Brecon, Radnor and Cwm Tawe |
Welsh name: Aberhonddu, Maesyfed a Chwm Tawe. |
| Breconshire |
|
| Breconshire and Radnorshire |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Brent Central |
|
| Brent East |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Brent East |
|
| Brentford |
Full name (in Craig 2) Middlesex, Brentford |
| Brentford and Chiswick |
Constituency first used at the February General election of 1974 (28/02/1974). Full name (in Craig 3) Middlesex, Brentford and Chiswick |
| Brentford and Isleworth |
|
| Brent North |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Brent South |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Brent West |
|
| Brentwood and Ongar |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Bridgend |
|
| Bridgnorth |
|
| Bridgwater |
Full name (in Craig 2,3,4) Somerset, Bridgwater. Constituency of same name also existed 1832-1870. |
| Bridgwater |
Disenfranchised for corruption in 1870. Constituency of same name reformed 1885. |
| Bridgwater |
|
| Bridgwater and West Somerset |
|
| Bridlington |
Full name (in Craig 4) Yorkshire (East Riding), Bridlington |