| Bromsgrove |
Full name (in Craig 4) Worcestershire, Bromsgrove |
| Bromsgrove and Redditch |
|
| Broxbourne |
|
| Broxtowe |
Constituency of same name also existed 1918-1955 |
| Broxtowe |
Full name (in Craig 3,4) Nottinghamshire, Broxtowe. Constituency of same name reformed 1983. |
| Buckingham |
Full name (in Craig 2,3,4) Buckinghamshire, Buckingham |
| Buckinghamshire |
|
| Buckinghamshire South |
|
| Bucklow |
Full name (in Craig 3) Cheshire, Bucklow. |
| Buckrose |
Full name (in Craig 2,3) Yorkshire (East Riding), Buckrose |
| Burnley |
|
| Burton |
Full name (in Craig 2,3,4) Staffordshire, Burton |
| Bury |
|
| Bury and Radcliffe |
|
| Bury North |
|
| Bury South |
|
| Bury St Edmunds |
Full name (in Craig 3,4) Suffolk, Bury St Edmunds |
| Bute |
|
| Bute and North Ayrshire |
Full name (in Craig 4) Ayrshire and Bute, Bute and North Ayrshire |
| Bute and Northern |
Full name (in Craig 3) Ayrshire and Bute, Bute and Northern |