| Abbreviation | Definition |
|---|---|
| RHM | Raine and Horne Mosman |
| RHM | Rank Hovis McDougall |
| RHM | Rapid Hand Movement |
| RHM | Real House Maverick |
| RHM | Red head mania |
| RHM | Red Hot Mama |
| RHM | Red Hot Metal |
| RHM | relaxed hair mentality |
| RHM | Reproductive Health Matters |
| RHM | Revista Hispánica Moderna |
| RHM | Riches Hawley Mikhail |
| RHM | Right Hand Man |
| RHM | Right Hemisphere material |
| RHM | Rubeus Hagrid Monday |
| RHMB | Robert Holford Macdowall Bosanquet |
| RHMO | Region Homogeneity Measure Operator |
| RHMP | Reliable Hybrid Multicast Protocol |
| RHMP | Reston Herndon Meeting Planners |
| RHMP | Riparian Habitat Mitigation Plan |
| RHMP | Rotating Helical Magnetic Perturbation |