M
- MAC - Military Airlift Command
- MAF - Mobility Air Force
- Maj - Major
- Maj Gen - Major General
- MAJCOM - Major Command
- MANPAD - Man-Portable Air Defense
- MARE - Major Accident Response Exercise
- MASINT - Measurement and Signature Intelligence
- MATS - Military Air Transport Service
- MDG - Medical Group
- MEO - Military Equal Opportunity
- MICAP - Mission Incapable
- MIF - Maneuver Item File
- MILDEC - Military Deception
- MILSTRIP – Military Standard Requisitioning and Issue Procedure
- MLR - Management Level Review
- MOAB - Massive Ordnance Air Blast Bomb
- MOOTW - Military Operations Other than War
- MOS - Maintenance Operations Squadron
- Mosquito Wings - Nickname for the Airman rank insignia
- MPF - Military Personnel Flight
- MRE - Meal Ready to Eat
- MSG - Mission Support Group
- MSgt - Master Sergeant
- MSS - Mission Support Squadron
- MTI - Military Training Instructor
- MTL - Military Training Leader
- Mud Hen - Nickname for the F-15E Strike Eagle
- MWS - Major Weapons System
- MXG - Maintenance Group
- MXS - Maintenance Squadron
Read more about this topic: List Of U.S. Air Force Acronyms And Expressions