Definition: A patronymic surname meaning "descendant of Raghallach," a personal name from the Old Norse and introduced by the Vikings. Ragheallach can be broken down into "ragh" meaning 'race' and "ceallach" meaning 'gregarious.'
Surname Origin:
Gaelic, Irish
Alternate Surname Spellings:
O'REILLY, O'RAHILLY
More Resources for the Surname REILLY :
Common Surname Search Tips
Tips and tricks for researching common surnames and picking your REILLY ancestors out from the crowd.
REILLY Surname Mailing List
Free mailing list for researchers of the Reilly surname and its variations includes subscription details and a searchable archives of past messages.
Cousin Connect - REILLY Genealogy Queries
Read or post genealogy queries for the surname REILLY, and sign up for free notification when new Reilly queries are added.