| Word | Description |
| B. A. | Bachelor's of Arts |
| B. S. | Bachelor's of Science |
| BASE | The minimum budget that all public school districts must adopt in Montana |
| BATE | Borderless Access to Training and Education |
| BEST | Better Elementary Science Teaching |
| BIA | Bureau of Indian Affairs |
| BIEA | Bureau of Indian Education Affairs |
| BLAST Off | Building Leaders and Strong Teams of Officers (conducted in state for State Officers by National staff) |
| BOE | Board of Education (Board of Public Education&Board of Regents) |
| BOI | Board of Investments |
| BOR | Board of Regents |
| BPAMA | Business Professionals of America, Montana Association |
| BPE | Board of Public Education |