| Acronym | Definition |
|---|
| ONJ➣Osteonecrosis of the Jaw |
| ONJ➣Olivia Newton-John |
| ONJ➣Orchestre National de Jazz (France) |
| ONJ➣Odate Noshiro Airport (Akita, Japan airport code) |
| ONJ➣Olst Nederland Jachtbouw (Olst Netherlands Yachting) |
| ONJ➣Observatoire National de la Jeunesse (French; Tunisia) |