Save Type Surname (from given name) Usage Irish Pronounced Pron. o-RORK [key] Other Forms FormsRork, Rorke, Rourk, Rourke, Roark, Roarke, O'Rorke, O'Roark, O'Roarke, Groark, Groarke Meaning & History Anglicized form of Irish Ó Ruairc meaning "descendant of Ruarc".