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

Etymology of O'Moroney

What does the name O'Moroney mean?

The Gaelic name used by the O'Moroney family in ancient Ireland was Ó Maolruanaidh, which means descendant of Ruanaidh or descendant of Rooney. 1

Early Origins of the O'Moroney family

The surname O'Moroney was first found in County Fermanagh (Irish: Fear Manach) in the southwestern part of Northern Ireland, Province of Ulster, where the family held a family seat since ancient times.

Early History of the O'Moroney family

This web page shows only a small excerpt of our O'Moroney research. Another 92 words (7 lines of text) covering the year 1172 is included under the topic Early O'Moroney History in all our PDF Extended History products and printed products wherever possible.

O'Moroney Spelling Variations

The archives that survive today demonstrate the difficulty experienced by the scribes of this period in their attempts to record these names in writing. Spelling variations of the name O'Moroney dating from that time include Moroney, Mulroney, Maroney, Morooney, Mulrooney, Mullrooney, Marooney and many more.

Early Notables of the O'Moroney family

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

Migration of the O'Moroney 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'Moroney or a variant listed above: Bridget and Catherine, Michael and Patrick Moroney, who all arrived in Canada in 1840; John Moroney, who arrived in Philadelphia in 1857; John and Thomas Mulrooney, who settled in Philadelphia in 1872. In Newfoundland, Patrick Mulrooney settled in Harbour Grace in 1816.



  1. MacLysaght, Edward, Supplement to Irish Families. Baltimore: Genealogical Book Company, 1964. Print.


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