1,429 Global Hallahan Family Members

Hallahan Family History

This interesting surname is of early medieval Irish origin, and is an Anglicized form of the Gaelic "O hAilleachain", descendant of Ailleachan. "Ailleachan" is a personal name from a diminutive of "aille", beauty. Traditionally, Irish family names are taken from the heads of tribes, or from some illustrious warrior, and are usually prefixed by "O", grandson, male descendant of, or "M(a)c", denoting "son of". The surname is more usually spelt Hallahan or Hallihane, and is the name of an old but not very numerous Munster family belonging primarily to Co. Cork, but well established as O'Hallaghan, also in Co. Waterford, in the 16th Century, as evidenced by the Tudor Fiants and Chancery Rolls...