First found in county Roscommon, where they held a family seat from ancient times.

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More about the Monahan History...

Please remember that this page is only a small extract of our complete history that includes:

• Ancient origin of the name (usually pre-1100)
• Known spelling variations
• Early movement of the family name during the Middle Ages
• Noteworthy bearers from the 1500-1600s
• First settlers to North America
• Notable contemporary bearers of the name
• A description and/or full color picture of the Coat of Arms, Crest, and Motto (where available)

A massive amount of Ireland's native population left the island in the 19th century for North America and Australia in hopes of finding more opportunities and an escape from discrimination and oppression. A great portion of these migrants arrived on the eastern shores of the North American continent. Although they were generally poor and destitute, and, therefore, again discriminated against, these Irish people were heartily welcomed for the hard labor involved in the construction of railroads, canals, roadways, and buildings. Many others were put to work in the newly established factories or agricultural projects that were so essential to the development of what would become two of the wealthiest nations in the world. The Great Potato Famine during the late 1840s initiated the largest wave of Iris immigration. Early North American immigration and passenger lists have revealed a number of people bearing the name Monahan or a variant listed above: William Monahan, who settled in Virginia in 1654; Edward Monaghan, who arrived in New York, NY in 1806; Patrick Monagan, who arrived in Ontario in 1809.

For more information on the last name Monahan, the PDF Surname History is available for purchase as well as other products.