| 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) |