ORW
| Acronym | Definition |
|---|---|
| ORW | Outstanding Resource Water |
| ORW | Osler-Rendu-Weber syndrome |
| ORW | Ohio Reformatory for Women (Marysville, OH) |
| ORW | Operation Rescue West (Christian activist organization; now Operation Rescue) |
| ORW | Ottawa Race Weekend (Canada) |
| ORW | Off Roading Warriors |
| ORW | Ohio Racewalker (magazine) |