O'brien Family History
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O'brien Name Meaning
Irish: Anglicized form of Gaelic Ó Briain ‘descendant of Brian’, a personal name probably based on the element bre- ‘hill’, with the transferred sense ‘eminence’, i.e. ‘exalted one’. See also Bryan. In Ireland there has also been some confusion with O’Byrne (see Byrne).
Source: Dictionary of American Family Names ©2013, Oxford University Press
Similar surnames: Mcbrien, Brian, Mcbreen, O'quinn, O'beirne, Breen, Brien, O'banion