| Name | Meaning | Details |
|---|---|---|
| Martinez | Descendant Of Martin | View Details |
| Meara | Descendant Of The Mirthful One | View Details |
| Monahan | Descendant Of The Little Monk | View Details |
| Murphy | Descendant Of Sea Warrior | View Details |
| Neilan | Descendant Of Niall | View Details |
| Nolan | Descendant Of The Famous One | View Details |
| Ola | "Ancestors Heir" | View Details |
| Olaf | "Ancestors Heir" | View Details |
| Olavi | Ancestor; Descendant | View Details |
| Ole | "Ancestors Heir" | View Details |
| Olin | "Ancestors Heir" | View Details |
| Olina | "Ancestors Heir" | View Details |
| Oliver | Descendant Of The Ancestor | View Details |
| Olivia | "Ancestors Descendant" | View Details |
| Olivier | "Elf Warrior Or Ancestors Descendant" | View Details |