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Doran is an Irish surname that derives from Ua Deoráin ( Ó Deorain ), a shortened version of Ua Deoradháin ( Ó Deoradhain ). " Deoradh " is a Gaelic word that means "exile", "wanderer" or "stranger". The O'Doran family are known as the chief Brehon (law-makers) of Leinster. They are said to be one of the Seven Septs of Loígis, an off-shoot of the Red Branch who travelled South to defeat a Muns...