Show ContentsO'Flahertie History, Family Crest & Coats of Arms

The Irish surnames in use today are underpinned by a multitude of rich histories. The name O'Flahertie originally appeared in Gaelic as "O Flaithbheartaigh," which means "bright ruler."

Early Origins of the O'Flahertie family

The surname O'Flahertie was first found in Connemara (Irish : Conamara), which derives from Conmhaicne Mara (meaning: descendants of Con Mhac, of the sea)), County Galway in Connacht where the name claims descent from Flaithbertaigh Ua Flaithbertaigh, King of Connacht, who died 1098. Flaithbertaigh was the first bearer of the surname O'Flaherty, and was Lord of Maigh Seola in what is now County Galway. 1

"The O'Flahertys were originally located in the Barony of Clare, County Galway, but in the thirteenth century, having been expelled from this territory, they settled in the Barony of Moycullen, and were styled Lords of lar Conacht or West Connaught. A large number of the Flahertys are now to be found in the Baronies of Moycullen, Ross, and Ballinahinch, in County Galway." 2

Another source gives this background about the family: "This family, whose tribe name was Muintir Murchadha, traced their descent from Flaibheartach, twenty-second in descent from Eochaidh Muighmeadhon, king of Ireland, who died in 366. They were at first settled in Magh Seola, to the east of Lough Corrib, but in the thirteenth century were driven from their original home by the O'Connors, and conquered a new territory in West Connaught from Lough Corrib to the sea. There were several septs of the clan." 3

Early History of the O'Flahertie family

This web page shows only a small excerpt of our O'Flahertie research. Another 135 words (10 lines of text) covering the years 1377, 1407, 1589, 1593, 1629 and 1718 are included under the topic Early O'Flahertie History in all our PDF Extended History products and printed products wherever possible.

O'Flahertie Spelling Variations

During the Middle Ages, a standardized literary language known by the general population of Ireland was a thing of fiction. When a person's name was recorded by one of the few literate scribes, it was up that particular scribe to decide how to spell an individual's name. So a person could have several spelling variations of his name recorded during a single lifetime. Research into the name O'Flahertie revealed many variations, including Flaherty, O'Flaherty, Flaverty, Laverty, Faherty and many more.

Early Notables of the O'Flahertie family

Notable amongst the family name at this time was Áedh Ó Flaithbheartaigh, (c. 1377?-1407), Taoiseach of Iar Connacht and Chief of the Name; Murrough na dTuadh Ó Flaithbheartaigh, (died 1593), Chief of Iar Connacht; Teige Ó Flaithbheartaigh (died 1589), an...
Another 40 words (3 lines of text) are included under the topic Early O'Flahertie Notables in all our PDF Extended History products and printed products wherever possible.

Migration of the O'Flahertie family

Thousands of Irish left in their homeland in the 18th and 19th centuries to escape the religious and political discrimination they experienced primarily at the hands of the English, and in the search of a plot of land to call their own. These immigrants arrived at the eastern shores of North America, early on settling and breaking the land, and, later, building the bridges, canals, and railroads essential to the emerging nations of United States and Canada. Many others would toil for low wages in the dangerous factories of the day. Although there had been a steady migration of Irish to North America over these years, the greatest influx of Irish immigrants came to North America during the Great Potato Famine of the late 1840s. Early North American immigration records have revealed a number of people bearing the Irish name O'Flahertie or a variant listed above: James Flaherty who landed in Virginia in 1651; followed James Flaharty in 1651; Timothy Flaharty settled in Boston Massachusetts in 1767; Ann Flaherty settled in New York in 1850.



  1. MacLysaght, Edward, Irish Families Their Names, Arms and Origins 4th Edition. Dublin: Irish Academic, 1982. Print. (ISBN 0-7165-2364-7)
  2. Matheson, Robert E., Special Report on Surnames in Ireland with Notes as to Numeric Strength, Derivation, Ethnology, and Distribution. Dublin: Alexander Thom & Co., 1894. Print
  3. Smith, George (ed), Dictionary of National Biography. London: Smith, Elder & Co., 1885-1900. Print


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