| Abbreviation | Definition |
|---|---|
| BAMC | British Airways Maintenance Cardiff |
| BAME | British And Minority Ethnic |
| BAMT | British Antarctic Monument Trust |
| BANA | British Australasian and North American |
| BANC | British Association of Nature Conservationists |
| BANs | British Approved Names |
| BAOR | British Army Of the Rhine |
| BAP | British American Project |
| BAPA | British Amateur Press Association |
| BAR | British Accredited Registry |
| BARP | British Airways Retirement Plan |
| BARS | British Association for Romantic Studies |
| BASC | British Association for Shooting and Conservation |
| BASELT | British Association of State English Language Teaching |
| BASHH | British Association for Sexual Health & HIV |
| BASIC | British American Security Information Council |
| BASIS | British Airways Safety Information System |
| BASO | British Association of Surgical Oncology |
| BASU | British Association of Softball Umpires |
| BASW | British Association of Social Workers |