| Abbreviation | Definition |
|---|---|
| RLY | Railway's |
| RLYS | Railways |
| RLYS | Rhumb Line Yacht Sales |
| RM | Rabid Munk |
| RM | Race Modified |
| RM | Racing Machine |
| RM | Racing Model |
| RM | Rack Mountable |
| RM | Raghead Muhammed |
| RM | Raghead Muhammedi |
| RM | Random Map |
| RM | Rap Monster |
| RM | Raw Materials |
| RM | Real Me |
| RM | REAL MEpic |
| RM | Really Manly |
| RM | récoltant manipulant |
| RM | recoltants manipulants |
| RM | redhotsonic and Module |
| RM | Reference Method |