| Acronym | Definition |
|---|
| MRCM➣Maple Ridge Community Management (est. 1984; Canada) |
| MRCM➣Multiple Reduction Copy Machine (algorithm) |
| MRCM➣Master Chief Machinery Repairman (Naval Rating) |
| MRCM➣Monitoring, Reconnaissance and CounterMeasures |
| MRCM➣Mini Racing Club de Marigny (French radio controlled car club; Marigny, France) |
| MRCM➣Murmansk Regional Monitoring Centre |
| MRCM➣Medieval and Renaissance Choral Music |
| MRCM➣Modified Rapid Colorimetric Method (chemistry) |