| Marcanthony | Marc Plus Anthony |
| Marcelis | Latin name meaning 'young warrior' or 'youthful fighter'. |
| Marcellous | Latin name meaning 'young warrior' or 'youthful fighter'. |
| Marck | War-like, Dedicated to Mars |
| Margarito | A precious pearl of light. |
| Markas | Dedicated to Mars, Gleaming |
| Markee | Gleaming, War-like |
| Markelle | Variant of Markell, meaning 'warrior' or 'soldier'. |
| Markez | A Form of Marquis, Noble Man |
| Marki | Gleaming, Dedicated to Mars |
| Markie | War-like, Gleaming |
| Marky | War-like, Dedicated to Mars |
| Marl | Soil rich in lime deposits. |
| Maron | Little Master, Sea |
| Marqus | Martial, Warlike |
| Marshawn | Mark Plus Shawn |
| Marshel | A keeper of the horses. |
| Marson | English name meaning 'son of Mars', the Roman god of war. |
| Marvic | Filipino name meaning 'strong' or 'masculine'. |
| Marz | Derived from the god of war. |
| Matiss | A variation meaning gift of God. |
| Mattew | Gift of Yahweh or God |
| Matthaeus | Derived from gift of the Lord. |
| Matthaios | Greek form of gift of the Lord. |
| Mattia | Italian name meaning gift of God. |
| Matunaaga | A name meaning one who is gifted. |
| Maurico | Spanish name meaning 'dark' or 'moorish'. |
| Maurie | Dark-skinned, Variant of Moorish |
| Maxton | Strong and powerful, derived from Maximus |
| Maxwel | Meaning the stream of Macks well. |
| Maxx | Greatest, By the Great Stream |
| Mayen | Derived from May, symbolizing love and beauty |
| Mecca | One who is like Yahweh or God |
| Med | Short form of names ending in -med, meaning protector |
| Meek | Showing humility and gentleness |
| Meindert | Derived from Meinhard, meaning strong and brave |
| Melby | Border, Mill Stream |
| Melee | One who is Bitter |
| Melik | Ruler or king in Turkish and Arabic cultures |
| Melis | King of Happiness |