Show ContentsHollahan History, Family Crest & Coats of Arms

There are many Irish surnames being used today in forms that are quite different than their original, ancient forms. Hollahan originally appeared in Gaelic as Ó hUallachain, which is derived from the word "uallach," which means "proud." 1

Early Origins of the Hollahan family

The surname Hollahan was first found in Thomond (Irish: Tuadh Mumhan), literally North Thomond, the pre-Norman Kingdom of Thomond, since divided between counties Limerick, Tipperary and Clare, where they held a family seat from ancient times.

Early History of the Hollahan family

This web page shows only a small excerpt of our Hollahan research. Another 92 words (7 lines of text) are included under the topic Early Hollahan History in all our PDF Extended History products and printed products wherever possible.

Hollahan Spelling Variations

Irish names were rarely spelled consistently in the Middle Ages. Spelling variations of the name Hollahan dating from that time include Holohan, O'Holohan, Mulholland, Highland, Hoolohan, Houlihan, Hooligan, Whelton, Oulihan, Oulahen, Whoolahan and many more.

Early Notables of the Hollahan family

More information is included under the topic Early Hollahan Notables in all our PDF Extended History products and printed products wherever possible.


United States Hollahan migration to the United States +

The 19th century saw a great wave of Irish families leaving Ireland for the distant shores of North America and Australia. These families often left their homeland hungry, penniless, and destitute due to the policies of England. Those Irish immigrants that survived the long sea passage initially settled on the eastern seaboard of the continent. Some, however, moved north to a then infant Canada as United Empire Loyalists after ironically serving with the English in the American War of Independence. Others that remained in America later joined the westward migration in search of land. The greatest influx of Irish immigrants, though, came to North America during the Great Potato Famine of the late 1840s. Thousands left Ireland at this time for North America, and those who arrived were immediately put to work building railroads, coal mines, bridges, and canals. In fact, the foundations of today's powerful nations of the United States and Canada were to a larger degree built by the Irish. Archival documents indicate that members of the Hollahan family relocated to North American shores quite early:

Hollahan Settlers in United States in the 19th Century
  • Jeremiah Hollahan, who arrived in Allegany (Allegheny) County, Pennsylvania in 1856 2
  • Daniel, David, John, Michael, Patrick and Owen Hollahan, who arrived in Philadelphia between 1840 and 1860
  • Daniel, David, John, Michael, Patrick, and Owen Hollahan, who all, who arrived in Philadelphia between 1840 and 1860
Hollahan Settlers in United States in the 20th Century
  • Michael Hollahan, aged 55, who immigrated to America from County Waterford, Ireland in 1906
  • John Hollahan, aged 28, who immigrated to the United States from Limerick, Ireland, in 1923

Canada Hollahan migration to Canada +

Some of the first settlers of this family name were:

Hollahan Settlers in Canada in the 20th Century
  • Florence Hollahan, aged 23, who immigrated to Halifax, Canada, in 1922
  • Marie Hollahan, aged 1, who immigrated to Halifax, Canada, in 1922

Contemporary Notables of the name Hollahan (post 1700) +



  1. MacLysaght, Edward, The Surnames of Ireland. Ireland: Irish Academic Press, sixth edition, 1985. Print. (ISBN 0-7165-2366-3)
  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)


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