| Abbreviation | Definition |
|---|---|
| BATA | Bay Area Transportation Authority |
| BATAC | Bicycle and Active Transportation Advisory Committee |
| BATIC | Build America Transportation Investment Center |
| BATT | Batteries For Advanced Transportation Technologies |
| BB | Big Block |
| BB | Break Bulk |
| BBAR | Big, Bad, and Reckless |
| BBB | Backroads, Bridges, and Boats |
| BBB | Big Blue Book |
| BBB | Big Bum Bus |
| BBC | Big Block Chevy |
| BBC | Break Bulk Cargo |
| BBCIR | Bombay, Baroda and Central India Railway |
| BBJ | Boeing Business Jet |
| BBJ2 | Boeing Business Jet 2 |
| BBK | Big Brake Kit |
| BBS | Big Black Sign |
| BBT | Baby Bullet Train |
| BBV | Bill Baker Vehicles |
| BBY | Boston Back Bay Station |