| Background: The name Allen in Ireland is derived from the native Gaelic O'hAillin Sept that was located in County Tipperary. The name was also brought to the country by settlers from England and Scotland in the seventeenth century. Hallinan, Hallion, Alleyn and MacCallion are among the recorded variants.
Variations: Allen, Allan, Alain, Allan, Alun, Alyn, Ailean, Ailín.
More Info: http://heraldry.celticradio.net/search.php?id=213
Discussion of this family is welcomed.