Randal MacDonnell, 1st Marquess of AntrimRandal MacDonnell, 1st Marquess of Antrim may refer to:Randal MacDonnell, 1st Marquess of Antrim (1645 creation), Roman Catholic landed magnate in Scotland and Ireland, son of the 1st Earl of AntrimRandal MacDonnell, 1st Marquess of Antrim (1789 creation)