The Irish surname Fitzpatrick is derived from the Gaelic name Mac Giolla Phadraig meaning son of, or descendant of Patrick. The name Fitzpatrick is the 60th most common surname in Ireland and is most frequently found in Kilkenny and Laois in the area of Ossory where they were chiefs dating back to before the Norman Invasionin the 11th Century. Additional families of Fitzpatrick are also found in the border counties of Cavan, Fermanagh, Monaghan and Leitrim. Today there are approximately 40,000 people with the last name Fitzpatrick living in The United States.
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