| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| MÁEdÓC | - | Ancient Irish | ||
| MÁEl MÁEdÓC | - | Ancient Irish | ||
| MÁEl Sechlainn | - | Ancient Irish | ||
| MÁEl Sechnaill | - | Ancient Irish | ||
| MÁGhnus | - | Irish | ||
| MÁIrÍN | MOI-reen, MAW-reen | Irish | ||
| MÁIre | MOI-ra | Irish | ||
| MÁIrtÍN | - | Irish | ||
| MÉAbh | MAYV | Irish, Irish Mythology | ||
| MÍCheÁL | - | Irish | ||
| MÓIrÍN | - | Irish | ||
| MÓR | MOR | Scottish, Irish | ||
| MÓR RÍOghain | - | Irish Mythology | ||
| MÓRrÍGhan | - | Irish Mythology | ||
| MadailÉIn | - | Irish |