| Abbreviation | Definition |
|---|---|
| BMAE | Budget Mobile Auto Electrics |
| BMBS | Blow-Out Monitoring and Braking System |
| BMC | British Motor Corporation |
| BMEP | Break Mean Effective Pressure |
| BMRTC | Bangalore Metropolitan Rail Transit Corporation |
| BMSN | Boatswain's Mate Seaman |
| BMT | Brooklyn to Manhattan Transfer |
| BMTA | Bangkok Mass Transit Authority |
| BMTS | Binghamton Metropolitan Transportation Study |
| BMV | Bits of Many Vehicles |
| BMV | Bureau of Motor Vehicles |
| BMW | Built My Way |
| BMW | Bus Metro Walk |
| BN | Burlington Northern |
| BNA | Nashville International Airport |
| BNIP | Bridge Needs and Investment Process |
| BNSF | Ban Negligently Shipped Freight |
| BNSF | Big New Super Freight |
| BOAT | Byway Open To All Traffic |
| BOAT/US | Boat Owners Association of the United States |