| Millton | Middle of Settlements; Mill Town |
| Milot | French name, possibly meaning 'soldier' or 'warrior'. |
| Milret | Derived from Old English, possibly meaning 'soldier's counsel' or 'warrior's advice'. |
| Minadoras | Spanish name, possibly meaning 'miners' or 'those who dig'. |
| Minadus | Derived from Latin, meaning 'ruler of the people' or 'leader of the masses'. |
| Minti | One who Collects his Thoughts |
| Mistar | A mysterious and hidden person. |
| Moby | Derived from the biblical name Moby, meaning 'sea' or 'ocean'. |
| Mocca | Derived from the Italian name Mocca, meaning 'young warrior'. |
| Mogan | Sensitive, Feelings |
| Mogga | Derived from the Gaelic name Mogga, meaning 'little lord'. |
| Monedorigi | Derived from the Latin name Monedorigi, meaning 'ruler of the land'. |
| Monedorix | Derived from the Latin name Monedorix, meaning 'ruler of the people'. |
| Monia | Derived from the Latin name Monia, meaning 'alone' or ' solitary'. |
| Monn | Derived from the Old English name Monn, meaning 'alone' or ' solitary'. |
| Morcant | Derived from the Old French name Morcant, meaning 'dark lord'. |
| Morcenou | Derived from the Breton name Morcenou, meaning 'sea warrior'. |
| Mordret | Derived from the Old French name Mordret, meaning 'dark ruler'. |
| Morfarch | Derived from the Old Welsh name Morfarch, meaning 'sea lord'. |
| Morgian | Derived from the Old Welsh name Morgian, meaning 'sea lord'. |
| Moriddig | Derived from the Old Welsh name Moriddig, meaning 'sea warrior'. |
| Morino | Dark Skinned; Moor; Swarthy |
| Morirex | Derived from the Latin name Morirex, meaning 'sea king'. |
| Morkere | Derived from the Old English name Morkere, meaning 'dark ruler'. |
| Mormarch | Derived from the Old Welsh name Mormarch, meaning 'sea lord'. |
| Morne | Derived from the Old French name Morne, meaning 'dark' or ' gloomy'. |
| Moruarch | Derived from the Old Welsh name Moruarch, meaning 'sea lord'. |
| Mouric | Derived from the Old French name Mouric, meaning 'dark warrior'. |
| Mourici | Derived from the Latin 'mori,' meaning to die, possibly a surname for a deceased person. |
| Mucca | Italian surname meaning 'female buffalo' or 'cow,' possibly a nickname for a strong woman. |
| Mucel | Possibly a variant of the name 'Machel,' meaning 'who is like God?' |
| Mucga | Derived from the Old English 'mucga,' meaning 'battle' or 'warrior.' |
| Mundo | Wealthy; Well-advised Protector |
| Mychaell | Variant of the name 'Michael,' meaning 'who is like God?' |
| Mydnaw | Possibly a variant of the name 'Madonna,' meaning 'my lady.' |
| Mylar | A strong and resilient individual. |
| Myntla | Derived from the Old English 'myntla,' meaning 'minte' or 'mint.' |
| Myric | Derived from the Old English 'myric,' meaning 'myrtle tree.' |
| Myrsa | Possibly a variant of the name 'Marsa,' meaning 'warlike' or 'strong.' |
| Nanowne | Derived from the Old English 'nan,' meaning 'none' or 'no one.' |