| Abbreviation | Definition |
|---|---|
| RM | Riley McDonough |
| RM | Ringgit Malaysia |
| RM | Ringgit Malaysian |
| RM | Risk Multiplier |
| RM | Roy Michael |
| RM | Rugged Multi |
| RM | Rumah Makan |
| RM | ruote motrici |
| RM | Rural Municipality |
| RMA | Recording Musicians Association |
| RMA | Red Marine Algae |
| RMA | Reliability Maintainability and Availability |
| RMA | Reliability Maintainability Availability |
| RMA | Reproductive Medicine Associates |
| RMA | Request for Manual Assistance |
| RMA | Request for Modification and Affidavit |
| RMA | Resource Modeling Association |
| RMA | Retail Merchants Association |
| RMA | Return Materials Authorization |
| RMA | Return Merchandise Application |