M
- MARCORSYSCOM – MARine CORps SYStems COMmand (U.S. Military)
- MARINE – My Ass Really Is Navy Equipment (U.S. Navy)
- MARINE – My Ass Rides In Navy Equipment (U.S. Navy)
- MARINE – Muscles Are Required; Intelligence, Not Essential
- MARFORRES – MARine FORces REServe (U.S. Marine Corps)
- MAW – Maximum Allowable Weight
- MBT – Main Battle Tank
- MCCS – Marine Corps Community Services (also known by the humorous backronym Marine Corps Crime Syndicate)
- MCEN – Marine Corps Enterprise Network (U.S. Military)
- MCEITS – Marine Corps Enterprise Information Technology Service (U.S. Military)
- MCPO – Master Chief Petty Officer (USCG/USN E-9)
- MFA – Ministry of Foreign Affairs
- MG – Machine Gun
- MG – Major General
- MI – Military Intelligence
- Mi – Mil Moscow Helicopter Plant (Russian)
- MIA – Missing In Action
- MedEvac – Medical Evacuation
- MICV – Mechanized Infantry Combat Vehicle
- MiG – Mikoyan-Gurevich (Russian)
- MK – Mark
- MK – Machinery Technician (U.S. Coast Guard)
- MLRS – Multiple Launch Rocket System
- MMFD – Miles and Miles of F...ing Desert (unofficial report in Gulf War)
- MOA – Military Operating Area (USAF Airspace)
- MOAB – Massive Ordnance Air Blast bomb, also known as "Mother Of All Bombs". (U.S. military)
- MOB – Main Operating Base
- MOBCOM – MOBile COMmand
- MOPP – Mission Oriented Protective Posture
- MPDS – Military Planning Data Allowance
- MRAP – Mine Resistant Ambush Protected
- MRE – Meal Ready to Eat (U.S. Military)
- MRX – Mission Rehearsal Exercise
- MSgt – Master Sergeant (USAF E-7)
- MTOE – Modified Table Of Organizational Equipment
- MTS+ – Movement Tracking System Plus
- MSDC+ – Marine Science Diving Club (Diving Club Of Hasanudin University)
Read more about this topic: List Of U.S. Government And Military Acronyms