Murtagh Family History
Murtagh Surname Meaning
Irish:: midland Anglicized form of Ó Muircheartaigh ‘descendant of Muircheartach’ a personal name meaning ‘navigator’; compare Moriarty in Munster.
See also Scottish Murdoch. Variants with a final -ie or -y may also be shortened forms of McMurdie etc. from the same personal name.
In Ulster a possible variant of the related Scottish surname Murdoch.
Source: Dictionary of American Family Names 2nd edition, 2022
