| Abbreviation | Definition |
|---|---|
| JMAG | Joint METOC Advisory Group |
| JMAO | Joint Mortuary Affairs Office |
| JMAO | Joint Mortuary Affairs Officer |
| JMAR | Joint Medical Asset Repository |
| JMAS | Joint Manpower Automation System |
| JMASS | Joint Modeling and Simulation System |
| J-MASS | Joint Mobility Analysis Support System |
| JMAT | Joint Medical Analysis Tool |
| JMAT | Joint Mobility Assistance Team |
| JMB | Joint Management Board |
| JMB | Joint Meteorology and Oceanography Board |
| JMC | Joint Military Command |
| JMC | Joint Military Commission |
| JMC | Joint Movement Center |
| JMC | Joint Munitions Command |
| JMCC | Joint Meteorological and Oceanographic Coordination Cell |
| JMCC | Joint Military Ceasefire Commission |
| JMCC | Joint Movement Control Center |
| JMCG | Joint Movement Control Group |
| JMCI | Joint Maritime Command Information |