| Abbreviation | Definition |
|---|---|
| BIS | Best Industrial Seminar |
| BISAC | Bangkok International Schools Athletics Conference |
| BISAC | Bucharest International Schools Athletics Conference |
| BISC | Bergen International Student Conference |
| BISC | Boston Intercultural Skills Conference |
| BITS | BAS Infrastructures for Technical Speech Processing |
| BJC | British Junior Chamber |
| BLC | Bicycle Leadership Conference |
| BLC | Business Leadership Conference |
| BMAC | Bisnow Multifamily Annual Conference |
| BMHC | Big Mountain Hockey Conference |
| BMICH | Bandaranaike Memorial International Conference Hall |
| BMVC | British Machine Vision Conference |
| BMW | IEEE Bandwidth Management Workshop |
| BMWXI | 11th Annual IEEE Bandwidth Management Workshop |
| BOC | Business Opportunities Conference |
| BOCA | Building Official Conference of America |
| BOF | Birds Of a Feather |
| BOFS | Birds Of a Feather Session |
| BOLTS | Blended Online Learning Teaching Summit |