ORRA
| Acronym | Definition |
|---|---|
| ORRA | Orlando Regional Realtor Association |
| ORRA | Oak Ridge Rowing Association |
| ORRA | Off-Road Radio Association |
| ORRA | Ontario Road Riders Association |
| ORRA | Oriental Rug Retailers of America, Inc. |
| ORRA | Oregon Refuse & Recycling Association |
| ORRA | Optimum Route/Resource Allocation (Fujitsu) |
| ORRA | Olympic Renewable Resources Association |
| ORRA | Out-Reach Rainbow Alliance |
| ORRA | Orewa Ratepayers & Residents Association (Orewa, Hibiscus Coast, Rodney District, New Zealand) |