| Abbreviation | Definition |
|---|---|
| BNI | British Naval Intelligence |
| BNW | Battalion Nuclear Warfare |
| BO | Base of Operations |
| BO | Bombed Out |
| BOA | Basic Ordering (or Operating) Agreement |
| BOA | Basic Ordering Agreement |
| BOA | Broad Ocean Area |
| BOAC | Boeing Aircraft Company |
| BOAT | British Overseas Army Training |
| BOB | Blueprint Of the Battlefield |
| BOB | Bombs Over Baghdad |
| BOC | Base Operations Center |
| BOC | Battalion Operations Center |
| BOC | Best Operational Capability |
| BOC | Bomb On Coordinate |
| BOCCA | Bureau Of Coordination of Civil Aircraft |
| BOCOD | Beat Off Cut-Off Date |
| BOD | Better Off Dead |
| BOD | Board Of Directors |
| BODAS | Brigade Operations Display and AAR ( After Action Reporting) System |