| Abbreviation | Definition |
|---|---|
| MCL | Mobilization Cross-Leveling System |
| MCLB | Marine Corps Logistic Base |
| MCLEF | Marine Corps - Law Enforcement Foundation |
| MCLIC | Mine Clearing Line Charge |
| MCLOA | Marine Corps Liaison Office for Ammunition |
| MCLORA | Marine Corps Level Of Repair Analysis |
| MCLOS | Marine Corps Liaison Office for Supply |
| MCM | Manual for Courts Martial |
| MCM | Manufacturing Cycle Management |
| MCM | Materiel Change Management |
| MCM | Military Classification Manual |
| MCM | Military Committee Meeting |
| MCM | Military Computing Module |
| MCM | Mine CounterMeasures |
| MCM | Mithril Chain Mail |
| MCM | Multi-Chip Module |
| MCMAP | Marine Corps Martial Arts Program |
| MCMC | Mine Countermeasures Commander |
| MCMG | Military Committee Meteorological Group (NATO) |
| MCMIC | Marine Corps Managers Internal Control |