| Acronym | Meaning |
 | MAI | Machine-Aided Indexing |
 | MAIDS | Management Automated Information Display System |
 | MAIDS | Multipurpose Automatic Inspection And Diagnostic |
 | MAIDS | System |
 | MAIN | Maintenance |
 | MAINT | Maintenance |
 | MAIR | Manufacturing And Inspection Record |
 | MAJ | Major |
 | MAL | Malfunction |
 | MAL | Material Allowance List |
 | MAL | Mobile Airlock |
 | MALL | Malleable |
 | MAN | Manual |
 | MAN | Microwave Aerospace Navigation |
 | MANF | Manifold |
 | MAOT | Maximum Allowable Operating Time |
 | MAP | Maintenance Analysis Program |
 | MAP | Message Acceptance Pulse |
 | MAP | Missed Approach Point |
 | MAP | Mission Application Program |
 | MAPOLE | Magnetic Dipole Spark Transmitter |
 | MAPS | Measurement Of Air Pollution From Satellites |
 | MAPS | Measurement Of Atmospheric Pollution From Satellites |
 | MAR | Maintenance And Refurbishment |
 | MAR | Memory Address Register |
 | MARS | Martin Automatic Reporting System |
 | MARS | Modular Airborne Recorder System |
 | MASDC | Military Aircraft Storage And Disposition Center |
 | MAT | Matrix |
 | MAT | Meteorological Atmospheric Turbulence |
 | MAT | Multiple Actuator Test |
 | MATCO | Materials Analysis |
 | MATL | Material |
 | MAU | Million Accounting Units |
 | MAUS | Messenschafteliche Autonome Experiment Unter |
 | MAUS | Schewerelosigkeit |
 | MAX | Maximum |
 | MAXCO | Maximum Dynamic Pressure |
 | MB | Millibar |
 | MB | Main Bus |
 | MB | Management Baseline |
 | MBB | Messerschmitt-Boklow-Blahn |
 | MBC | Maximum Breathing Capacity |
 | MBCS | Motion-Base Crew Station (SMS) |
 | MBFP | Manufacturing Build And Flow Plan |
 | MBI | Multibus Interface |
 | MBK | Medications And Bandage Kit |
 | MBK | Medications And Bandage Kit |
 | MBL | Mobile Unit (TACAN Station) |
 | MBO | Management By Objective |