WBO
| Acronym | Definition |
|---|---|
| WBO | World Boxing Organization |
| WBO | Western Buddhist Order |
| WBO | Women Business Owners (Seattle, WA) |
| WBO | Women Business Association (Charlotte, NC) |
| WBO | Won by One (Malibu, California; a cappella group) |
| WBO | World Bamboo Organization (formerly International Bamboo Association) |
| WBO | Wehrbeschwerdeordnung |
| WBO | World Brokers Online (real estate) |
| WBO | Wide Band Omni |
| WBO | Wartime Battlefield Operation |