| Abbreviation | Definition |
|---|---|
| BIDST | British Institute of Dental and Surgical Technologists |
| BIES | British Irish and Empire Studies |
| BIET | British Institute of Engineering Technology |
| BIFA | British Independent Film Awards |
| BIFA | British International Freight Association |
| BIHS | British Ice Hockey Superleague |
| BIIC | British Irish Intergovernmental Council |
| BIIS | British Irish ice sheet |
| BIKO | British Institute of Karate Organisation |
| BILP | British Interlibrary Loan Project |
| BIMA | British Interactive Media Association |
| BIMA | British Isles Majorette Association |
| BIMBO | British Ivan Modellers Building Organisation |
| BIMM | British and Irish Modern Music |
| BIMR | British Islands and Mediterranean Region |
| BIOG | British Industry Offset Group |
| BIOR | British Institute Of Recruiters |
| BIOS | British Intelligence Objectives Sub |
| BIPA | British Irish Parliamentary Assembly |
| BIPP | British Institute of Professional Photography |