| Abbreviation | Definition |
|---|---|
| NBFH | Northern Burlington Field Hockey |
| NBG | National Bicycle Greenway |
| NBHF | National Baseball Hall of Fame |
| NBHFC | New Britain Hunting and Fishing Club |
| NBKA | Nayak Budokan Karate Academy |
| NBL | National Barefoot League |
| NBL | National Basketball League |
| NBL | National Bicycle League |
| NBL | National Blackbelt League |
| NBLL | New Braunfels Little League |
| NBN | Nothing But Net |
| NBP | Not Born to Participate |
| NBR | No Brakes Racing |
| NBRA | National Boat Racing Association |
| NBS | NASCAR Busch Series |
| NBS | National Brotherhood of Skiers |
| NBS | Nations Best Sports |
| NBS | Nation's Best Sports |
| NBSC | North Bristol Sportsman's Club |
| NBTT | No Beach too Tough |