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- Douglas Macgregor
- Niccolò Machiavelli – political theorist, The Prince and Dell'arte della guerra (The Art of War)
- Alfred Thayer Mahan – naval strategist
- Dennis Hart Mahan – military theorist and Engineering professor at West Point, wrote Advanced Guard, Outpost and Detachment Service of Troops, with essential Principles of Strategy and Grand Tactics, commonly known as Outpost
- Erich von Manstein
- Mao Zedong – Chinese leader and guerrilla theorist
- Carlos Marighella – Brazilian "urban guerrilla", Minimanual of the Urban Guerrilla
- Tyrone G. Martin – USS Constitution expert
- Maurice – Byzantine Emperor and traditional author of the military treatise Strategikon
- John Frederick Maurice – soldier, military writer
- Maurice of Nassau
- Gordon McCormick – theorist on the "Magic Diamond" model of counter-insurgency
- Steven Metz
- Billy Mitchell
- Helmuth von Moltke the Elder
- François-Henri de Montmorency
- Robin Moore – The Hunt for Bin Laden: Task Force Dagger
- Miyamoto Musashi – The Book of Five Rings
Read more about this topic: List Of Military Writers