McAllister (surname) has many different spellings due to immigration. Some of the common spellings are 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,
Campbell (surname) derivation, from the surname Mac Cathmhaoil. Descendants of a famous war-leader ("Cathmhaoil" means "battle chief") took the surname, which was often pronounced "Cammel". This coincided with the pronunciation of the Scottish surname "Campbell", and was therefore anglicised to the same spelling. From this Irish surname, a number of derivations were derived including MacCawill, McCaul, MacCall, Caulfield, and of course Campbell. Campbell Killian famous Kiltormer man. Campbell (surname) Campbell is primarily a Scottish surname of Gaelic origins. In Scotland, the name itself derives from two Scottish Gaelic words. "Cam" (crooked) and "Beul" (mouth) meaning "Crooked mouth" or "wry-mouthed", originally a nickname