| Abbreviation | Definition |
|---|---|
| BIIA | Board of Industrial Insurance Appeals (Washington) |
| BILA | British Italian Law Association |
| BILG | Business Immigration Law Group |
| BILI | Bulgarian Institute for Legal Initiatives |
| BILL | Business Information Law And Life |
| BIP | Battering Intervention Program |
| BIP | Behavior Intervention Plan |
| BIST | Behavior Intervention Support Team |
| BITS | Bulldogs Into The Streets |
| BJ | Broken Jaw |
| BJAR | Board for Judicial Administration Rules |
| BK | Bad Kid |
| BK | Blood Killa |
| BKA | Better Known As |
| BL | Big Lunatic |
| BLAC | Black Lawyers Association of Cincinnati |
| BLD | Bald |
| BLEA | Basic Law Enforcement Academy |
| BLET | Basic Law Enforcement Training |
| BLF | Blanch Law Firm, P.C. |