| Acronym | Definition |
|---|
| RMJ➣Ring Missionarischer Jugendbewegungen (German: Ring Missionary Youth Movements; est. 1974) |
| RMJ➣Richard Mentor Johnson (ninth Vice President of the United States) |
| RMJ➣Rocky Mountain Journal of Mathematics (Tempe, AZ) |
| RMJ➣Radio des Meilleurs Jours (French radio station) |
| RMJ➣Réseau Mennaisien Jeunes (French: Mennaisien Youth Network) |
| RMJ➣R. Marshall Jones, Inc. (est. 1992; West Palm Beach, FL) |
| RMJ➣Railway and Modellers Junction (UK) |