| 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 |