 The name is preserved in the form Glenaul which was used as the name for the local District Electoral Division of the former Armagh Poor Law Union.The name derives from the Irish "Cluain Dabhail", which means "meadow of Dabhal", noted as the ancient name of the River Blackwater.Clanaul is also recorded as Clandavle, and in the Tynan Charter of 1455 as Clondowyll.