Show ContentsMacKoy History, Family Crest & Coats of Arms

Early Origins of the MacKoy family

The surname MacKoy was first found in County Cork (Irish: Corcaigh) the ancient Kingdom of Deis Muin (Desmond), located on the southwest coast of Ireland in the province of Munster, where they trace their origins through Amhailgadh, brother of Flaitheartach on the Maguire pedigree. He was in turn ancestor of MacAodh. 1

This line was native Irish, not to be confused with the group who descend from Mary MacCoy, wife of Duncan Campbell, of Inverary, Scotland who settled in Ulster, part of the Plantation of Ireland. They held lands in Londonderry.

Early History of the MacKoy family

This web page shows only a small excerpt of our MacKoy research. Another 69 words (5 lines of text) covering the years 1715, 1774, 1832, 1839, 1872 and 1899 are included under the topic Early MacKoy History in all our PDF Extended History products and printed products wherever possible.

MacKoy Spelling Variations

Spelling variations of this family name include: MacCoy, MacCooey and others.

Early Notables of the MacKoy family

Another 38 words (3 lines of text) are included under the topic Early MacKoy Notables in all our PDF Extended History products and printed products wherever possible.


United States MacKoy migration to the United States +

Some of the first settlers of this family name were:

MacKoy Settlers in United States in the 17th Century
  • James Mackoy, who landed in Maryland in 1665 2
  • Ann Mackoy, who arrived in Maryland in 1673 2
MacKoy Settlers in United States in the 18th Century
  • Patrick Mackoy, who landed in Maryland in 1716 2
  • John Mackoy, aged 25, who arrived in Georgia in 1732 2


  1. O'Hart, John, Irish Pedigrees 5th Edition in 2 Volumes. Baltimore: Genealogical Publishing Company, 1976. Print. (ISBN 0-8063-0737-4)
  2. Filby, P. William, Meyer, Mary K., Passenger and immigration lists index : a guide to published arrival records of about 500,000 passengers who came to the United States and Canada in the seventeenth, eighteenth, and nineteenth centuries. 1982-1985 Cumulated Supplements in Four Volumes Detroit, Mich. : Gale Research Co., 1985, Print (ISBN 0-8103-1795-8)


Houseofnames.com on Facebook