ARRR
| Acronym | Definition |
|---|---|
| ARRR | Agenzia Regione Recupero Risorse (Italian: Area Agency Resource Recovery) |
| ARRR | Adjusted Relative Risk Reduction |
| ARRR | Antwerp-Rotterdam-Rhine-Ruhr (chemical cluster) |
| ARRR | Annual Riyadh Radiology Review (Riyadh, Saudi Arabia) |
| ARRR | Adjusted Relative Recurrence Rate (urinary stones; urology) |