| Acronym | Definition |
|---|
| RDJ➣Robert Downey Jr. |
| RDJ➣Rio De Janeiro (Brazil) |
| RDJ➣Richard D. James (musician, see AFX) |
| RDJ➣Règle du Jeu (French: Rules of the Game) |
| RDJ➣Radio des Jeunes (French: Youth Radio) |
| RDJ➣Route des Jeunes (French: Road of Youth; various locations) |
| RDJ➣Random and Deterministic Jitter |