| Bolton |
Known as Bolton-le-Moors before 1832 |
| Bolton East |
|
| Bolton North East |
|
| Bolton South and Walkden |
|
| Bolton South East |
|
| Bolton West |
|
| Booth Ferry |
|
| Bootle |
Full name (in Craig 2) Lancashire, Bootle |
| Boston |
|
| Boston and Skegness |
|
| Bosworth |
Full name (in Craig 2,3,4) Leicestershire, Bosworth |
| Bothwell |
Full name (in Craig 3,4) Lanarkshire, Bothwell |
| Bournemouth |
|
| Bournemouth East |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Bournemouth East and Christchurch |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Bournemouth West |
|
| Bow and Poplar |
|
| Bracknell |
|
| Bradford |
|
| Bradford Central |
|
| Bradford East |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Bradford East |
Previously a constituency in 1885-1974. |
| Bradford North |
|
| Bradford South |
|
| Bradford West |
Consituency of same name reformed in 1955. |