Show ContentsReil History, Family Crest & Coats of Arms

The Reil surname originally appeared in Gaelic as O Raghailligh, which means descendant of Raghallach.

Early Origins of the Reil family

The surname Reil was first found in County Cavan. They were known as the Princes of East Breffny, descended from Raghallaigh, Prince of Breffny in 981. They maintained their territory during the Anglo/Norman invasion of Strongbow, Earl of Pembroke, in 1172, but Sir John O'Reilly, Prince of Breffny surrendered the principality to Queen Elizabeth I thereby ensuring that his territories remained intact.

Early History of the Reil family

This web page shows only a small excerpt of our Reil research. Another 95 words (7 lines of text) covering the years 1598, 1630, 1640, 1646, 1667, 1669, 1689, 1691, 1695 and 1703 are included under the topic Early Reil History in all our PDF Extended History products and printed products wherever possible.

Reil Spelling Variations

Within the archives researched, many different spelling variations of the surname Reil were found. These included One reason for the many variations is that scribes and church officials often spelled an individual's name as it sounded. This imprecise method often led to many versions. O'Reilly, O'Reilley, O'Reily, O'Rielly, O'Riely, O'Riley, O'Rilley, Reel and many more.

Early Notables of the Reil family

Notable amongst the family name at this time was

  • Count John O'Reilly; Edmund O'Reilly (1598-1669), Roman Catholic Archbishop of Armagh; Hugh Reily (Reilly or O’Reilly) (c.1630-1695) Irish Member of Parliament for Cavan Borough in the Patriot Parliam...


United States Reil migration to the United States +

To escape the religious and political discrimination they experienced primarily at the hands of the English, thousands of Irish left their homeland in the 19th century. These migrants typically settled in communities throughout the East Coast of North America, but also joined the wagon trains moving out to the Midwest. Ironically, when the American War of Independence began, many Irish settlers took the side of England, and at the war's conclusion moved north to Canada. These United Empire Loyalists, were granted land along the St. Lawrence River and the Niagara Peninsula. Other Irish immigrants settled in Newfoundland, the Ottawa Valley, New Brunswick and Nova Scotia. The greatest influx of Irish immigrants, however, came to North America during the Great Potato Famine of the late 1840s. Thousands left Ireland at this time for North America and Australia. Many of those numbers, however, did not live through the long sea passage. These Irish settlers to North America were immediately put to work building railroads, coal mines, bridges, and canals. Irish settlers made an inestimable contribution to the building of the New World. Early North American immigration records have revealed a number of people bearing the Irish name Reil or a variant listed above, including:

Reil Settlers in United States in the 18th Century
  • Johann Jacob Reil, who landed in Pennsylvania in 1751 [1]
  • Maria Catharina Reil, who arrived in Pennsylvania in 1751 [1]
Reil Settlers in United States in the 19th Century
  • Mr. Heinrich Reil, aged 31, from Germany who arrived in Galveston, Texas aboard the ship "Weser" in 1844
Reil Settlers in United States in the 20th Century
  • Anton Reil, who arrived in Chile in 1912 [1]


  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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