| Acronym | Definition |
|---|
| WTBA➣World Tenpin Bowling Association |
| WTBA➣Where the Boys Aren't (adult film series) |
| WTBA➣Wisconsin Transportation Builders Association (Madison, WI) |
| WTBA➣World Taiji Boxing Association |
| WTBA➣Washington Thoroughbred Breeders Association (est. 1940; horse breeding; Washington) |
| WTBA➣Winslow Township Basketball Association (New Jersey) |