MCILROY

Origin and etymology In historic texts In the 1881 census Distribution map

As described in historical dictionaries

An Etymological Dictionary of Family and Christian Names (1857)

(origin: Gaelic.) From Mac, gille, and ruadh, red-haired;--the son of the red-haired young man.

Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.

Surname type: From name of parent

Origin: Celtic

Region of origin: British Isles

Country of origin: Ireland

Religion of origin: Christian

Language of origin: Gaelic

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