| Banbury |
Full name (in Craig 2,3,4) Oxfordshire, Banbury |
| Bandon |
|
| Banff and Buchan |
|
| Banffshire |
|
| Bangor Aberconwy |
|
| Barking |
|
| Barkston Ash |
Full name (in Craig 2,3,4) Yorkshire (West Riding), Barkston Ash |
| Barnard Castle |
Full name (in Craig 2,3) Durham, Barnard Castle |
| Barnet |
Constituency first used at the February General election of 1974 (28/02/1974). Full name (in Craig 3,4) Hertfordshire, Barnet |
| Barnet Chipping Barnet |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Barnet Hendon North |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Barnet Hendon South |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Barnsley |
Full name (in Craig 2) Yorkshire (West Riding), Barnsley |
| Barnsley Central |
|
| Barnsley East |
|
| Barnsley East |
|
| Barnsley East and Mexborough |
|
| Barnsley North |
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| Barnsley South |
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| Barnsley West and Penistone |
|
| Barnstaple |
Full name (in Craig 2,3) Devon, Barnstaple |
| Barons Court |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Barrow and Furness |
|
| Barrow-in-Furness |
|
| Barry |
Full name (in Craig 4) Glamorganshire, Barry |