| Abbreviation | Definition |
|---|---|
| RRMF | Rational rotation minimizing frames |
| RRMF | rational rotationminimizing frames |
| RRMF | rational rotation–minimizing frames |
| RRMF | Real Raw Milk Facts |
| RRMF | Rehoboth Red Mesa Foundation |
| RRMF | Renewable Resources Matching Fund |
| RRMF | Resource Recovery and Management Facility |
| RRMF | Robert R McCormick Foundation |
| RRMS | Rapid Response Monitoring Services |
| RRN | Radar Rainfall Neural |
| RRN | Radio Radio Network |
| RRN | Radio Results Network |
| RRN | real right niggaz |
| RRN | Receiver Registration Number |
| RRN | Reconciliation Resource Network |
| RRN | Refugee Rights Network |
| RRN | Refund Reference Number |
| RRN | Registration Renewal Number |
| RRN | Renewal Reference Number |
| RRN | Replacement renewal notice |