McCord (surname) Irish name Mac Mhuircheartaigh (septs of MacCurdy, and MacKurdy). Notable people with the surname include: McCord (surname) McCord (also rendered MacCourt, McCourt, McCoard, McCard, and MacCord) is a surname with origins having been found between Ayrshire, Scotland, but mostly in Airgíalla [circa 7th century AD] (modern day Irish counties of Louth, Tyrone, Armagh, and Monaghan. McCord/MacCord comes from Old Gaelic name "Mac Cuarta" or sometimes "Mac Cuairt", translating as "the son of Cuairt", a byname meaning "visitor" or "journeymen"or "son of Achilles" The town of Cappagh, County Tyrone, Northern Ireland in gaelic translates to Ceapach Mhic Cuarta meaning "Mac Cuarta's
Eolais mac Biobhsach manuscripts going back almost two hundred years. O'Donovan claimed the family name ( "descendent of Eolais") is still found anglicised as "Olus" or "Olis". two instances of the surname corrupted as "Oelase" and "Olase", are found in the Irish Fiants for Leinster. The surname must be very rare. Eolais mac Biobhsach Eolais "mac Biobhsach" (alias " "knowledge", anglicized "Wallis", "Olis" or "Olus" ) was a chieftain of 10th century Gaelic Ireland. He is noted as the first "full chieftain of Conmaicne Réin". His descendants, "the Muintir Eolais", expanded into the territory of present day south county Leitrim, and parts of