O%27rourke Family History
O%27rourke Name Meaning
Irish: Anglicized form of Gaelic Ó Ruairc ‘descendant of Ruarc’, Old Gaelic Ruadhrac, a personal name from Norse Hrothrekr (see Roderick). This is the name of chieftain family in counties Leitrim and Cavan.
Source: Dictionary of American Family Names ©2013, Oxford University Press