Starting with letter M
| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 21 | Maasiai | Biblical | The defense, or strength, or trust of the Lord. | M | |
| 22 | Maath | Biblical | Wiping away, breaking, fearing, smiting. | M | |
| 23 | Maaz | Biblical | Wood, wooden. | M | |
| 24 | Maazin | Muslim | Variant of Mazin: Proper name.. | M | |
| 25 | Mabon | ArthurianLegend | A knight. | M | |
| 26 | Mabon | Celtic | Mythical god of youth. | M | |
| 27 | Mabon | Welsh | Legendary son of Modron. | M | |
| 28 | Mabonaqain | ArthurianLegend | A knight. | M | |
| 29 | Mabsant | Welsh | Legendary son of Caw. | M | |
| 30 | Mabuz | ArthurianLegend | Ruler of Death Castle. | M | |
| 31 | Mac | Celtic | Son of. | M | |
| 32 | Mac | Gaelic | Son of. Scottish and Irish surname prefix sometimes used as a given name or nickname. Mack: (Scottish) Ancient Scottish given name. | M | |
| 33 | Mac | Scottish | Son of. | M | |
| 34 | Mac a'bhaird | Gaelic | Son of Baird. | M | |
| 35 | Mac a'bhiadhtaiche | Gaelic | Son of Bhiadhtaiche. | M | |
| 36 | Mac Adhaimh | Gaelic | Son of Adam. | M | |
| 37 | Mac Ailean | Gaelic | Son of the handsome man. | M | |
| 38 | Mac Alasdair | Gaelic | Son of Alasdair. | M | |
| 39 | Mac an Aba | Gaelic | Son of the Father or Abbott. | M | |
| 40 | Mac an Bharain | Gaelic | Son of the noble warrior. | M | |