| Acronym | Definition |
|---|
| WJO➣Westchester Jazz Orchestra (Chappaqua, NY) |
| WJO➣Weak Jump Overcall |
| WJO➣World Jado Organisation (martial arts) |
| WJO➣World Journal of Orthodontics |
| WJO➣Windjammers Jazz Orchestra |
| WJO➣Web Journal of Ophthalmology |
| WJO➣Waco Jazz Orchestra (est. 1989; Waco, TX) |