McAllister (surname) McAllister (surname) McAllister is a surname from Scotland and Ireland that originates from the Gaelic name Mac Alasdair, meaning son of God. Alasdair is the Gaelic form of the first name Alexander. The Mc Alisters for the greater part owe their ancestry to the Scottish clan of the Mac Donalds. The name is derived from the personal name Alexander. The Mc Alisters arrived in Ulster as Gallowglasses at the invitation of the MacDonnell's. Today the greatest numbers of the name are to be found in counties Antrim, Londonderry, Fermanagh, and Dublin, otherwise the name is widely dispersed. The McAllister surname
Moran (surname) in north Mayo, surrounding the modern town of Ballina. Following the Norman invasion, their territory was usurped by the Barretts and Burkes and the sept lost its central organisation. The modern distribution of the surname within Mayo suggests that the Morans spread southwards and today are chiefly found in the central area of the county, particularly in the barony of Carra. Moran (surname) Moran () is a modern Irish surname and derived from membership of a medieval dynastic sept. The name means a descendent of "Mórán". “Mor” in Gaelic translates as big or great and “an” as the prefix the.