Ohalloran Family History
Ohalloran Surname Meaning
Irish (Limerick and Clare): Anglicized form of Gaelic Ó hAllmhuráin ‘descendant of Allmhurán’ a personal name from a diminutive of allmhurach ‘foreigner’
(from all ‘beyond’ + muir ‘sea’).
See Halloran.
Source: Dictionary of American Family Names 2nd edition, 2022
