FRJ
| Acronym | Definition |
|---|---|
| FRJ | Fondation Ressources Jeunesse (French: Youth Resources Foundation; Quebec, Canada) |
| FRJ | Facility Reject Message |
| FRJ | Fantasy Realms Journal (Amateur Press Association) |
| FRJ | Falkenburg Road Jail (Tampa, FL) |
| FRJ | Fitted Rowing Jacket |
| FRJ | Formula Rotax Junior (racing) |