| Acronym | Definition |
|---|
| RIJ➣Right Internal Jugular (vein) |
| RIJ➣Refugees International Japan (est. 1979; Tokyo, Japan) |
| RIJ➣Retina Institute Japan |
| RIJ➣Russell Investments Japan |
| RIJ➣Réseau Insertion Jeunes (French: Youth Inclusion Network) |
| RIJ➣Réseau d'Information Jeunesse (French: Youth Information Network) |
| RIJ➣Repetitive Incomplete Join (Unreal game engine security exploit) |