'''O'Driscoll (and its derivative Driscoll''') is an Irish surname. It is derived from the Gaelic ''Ó hEidirsceoil''. The O'Driscolls were rulers of the Dáirinesept of the Corcu Loígde until the early modern period; their ancestors were Kings of Munster until the rise of the Eóganachta in the 7th century. At the start of the 13th century, three prominent branches of the family came into existence: O'Driscoll Mor, O'Driscoll Og, and O'Driscoll Beara. The Ó prefix was dropped by many in Ireland during the 17th and 18th centuries. The surname is now most prominent in the Irish counties of Cork and Kerry.
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