Show ContentsMcMannis 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. McMannis originally appeared in Gaelic as Mac Maghnuis, which means son of Manus. The personal name Manus, imported into Ireland by the Norse, is ultimately derived from the Latin forename Magnus.

Early Origins of the McMannis family

The surname McMannis was first found in County Roscommon (Irish: Ros Comáin) located in central Ireland in the province of Connacht, where they held a family seat from ancient times.

Early History of the McMannis family

This web page shows only a small excerpt of our McMannis research. Another 87 words (6 lines of text) covering the years 1172 and 1181 are included under the topic Early McMannis History in all our PDF Extended History products and printed products wherever possible.

McMannis Spelling Variations

Those scribes in Ireland during the Middle Ages recorded names as they sounded. Consequently, in this era many people were recorded under different spellings each time their name was written down. Research on the McMannis family name revealed numerous spelling variations, including MacManus, MacManners, McManus, Manus and others.

Early Notables of the McMannis family

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


United States McMannis migration to the United States +

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 McMannis or a variant listed above:

McMannis Settlers in United States in the 18th Century
  • Michael McMannis, who landed in Philadelphia, Pennsylvania in 1772 1
McMannis Settlers in United States in the 19th Century
  • Bernard McMannis, who settled in Philadelphia in 1828
  • John McMannis, who arrived in Allegany (Allegheny) County, Pennsylvania in 1874 1

Australia McMannis migration to Australia +

Emigration to Australia followed the First Fleets of convicts, tradespeople and early settlers. Early immigrants include:

McMannis Settlers in Australia in the 19th Century
  • Eleanor McMannis, aged 20, a domestic servant, who arrived in South Australia in 1855 aboard the ship "Admiral Boxer"

Contemporary Notables of the name McMannis (post 1700) +

  • Cheryl McMannis, American actress, known for her work on The Return of the Six-Million-Dollar Man and the Bionic Woman (1987), Can You Feel Me Dancing? (1986) and Simon & Simon (1981)


  1. 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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