| Blackpool North |
|
| Blackpool North and Cleveleys |
Successor to Blackpool North and Fleetwood |
| Blackpool North and Fleetwood |
|
| Blackpool South |
|
| Blaenau Gwent |
|
| Blaydon |
Full name (in Craig 3,4) Durham, Blaydon |
| Blyth |
|
| Blyth Valley |
|
| Bodmin |
Full name (in Craig 2,3,4) Cornwall, Bodmin |
| Bognor Regis and Littlehampton |
|
| Bolsover |
Full name (in Craig 4) Derbyshire, Bolsover |
| Bolton |
Known as Bolton-le-Moors before 1832 |
| Bolton East |
|
| Bolton North East |
|
| Bolton South East |
|
| Bolton West |
|
| Booth Ferry |
|
| Bootle |
Full name (in Craig 2) Lancashire, Bootle |
| Boston |
|
| Boston and Skegness |
|