O’Rourke is a common old Irish surname it is also a name of a old clan The O Ruairc clan which was some part of Irish royalty it had been dated back to a fifth century King
The O'Rourkes were the historic rulers of Breifne in the 12th century. At which time the name was spelled "Ruairc". "O'" Meaning "grandson of" translates the name to "Grandson of Rourke". O'Rourke has no urbanheritage and is not urban in anyway.