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

Etymology of O'Kean

What does the name O'Kean mean?

Today's Irish surnames are underpinned by a multitude of rich histories. The name O'Kean originally appeared in Gaelic as Ó Cathain.

Early Origins of the O'Kean family

The surname O'Kean was first found in Derry, where the name literally meant 'Cathan's Son.' "This name may be rendered 'warrior'(cath, 'a battle'). The O'Cathains, now O'Kanes, were of the race of Eoghan, who was son of Niall of the Nine Hostages, Monarch of Ireland, who died A.D. 406." 1

Saint Cainner or Cannera (d. 530?), appears in the martyrology of Tamlacht and other ancient lists of Irish saints on 28 Jan. "According to Colgan, she was born of noble parents in the district of Bentraighe (Bantry) in South Munster. " 2

We would be remiss if we did not mention the English and Welsh origins of the name. In England, Yorkshire was a popular location for the family. The Yorkshire Poll Tax Rolls of 1379 included: Johannes Cayne, Kirkby Overblow; and Johannes Cayne, Knaresborough. 3

"Mauritius de Cadomo held lands in Barony, Devonshire, in 1083. William de Cadomo occurs in Norfolk, Walter de Cadomo in Norfolk, holding great estates, 1086. Renebald de Caen occurs in 1130 (Rot. Pip.). The family of De Caen, Caan, &c., is often mentioned later. In Normandy it occurs in the 12th cent. very frequently." 4

In Wales, "Rhys Cain (16th cent.), was a Welsh poet of the latter part of the sixteenth century, born at Trawsfynydd in Merionethshire, a village on the river Cain, whence he took his surname." 2

Early History of the O'Kean family

This web page shows only a small excerpt of our O'Kean research. Another 147 words (10 lines of text) covering the years 1196 and 1672 are included under the topic Early O'Kean History in all our PDF Extended History products and printed products wherever possible.

O'Kean Spelling Variations

Irish names were rarely spelled consistently in the Middle Ages. Spelling variations of the name O'Kean dating from that time include Cain, Caine, Kane, Kain, Cahan, O'Cahan, Kean, Keane, O'Keane, Ceane, Cean, Kahan, O'Kean, O'Kane, O'Kaine, Kaine, Keann, Cainn, Cainne, Kainn, Cahann, O'Cain and many more.

Early Notables of the O'Kean family

Another 42 words (3 lines of text) are included under the topic Early O'Kean Notables in all our PDF Extended History products and printed products wherever possible.

Migration of the O'Kean family

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 O'Kean or a variant listed above, including: Christopher Cain or Cayne who settled in Cambridge, Massachusetts in 1639; and died in 1653; he had two sons, Jonathon and Nathaniel; Charles Cain settled in Virginia in 1654.



  1. Moore, A.W., Manx Names. London: Elliot Stock, 62 Paternoster Row, 1906. Print
  2. Smith, George (ed), Dictionary of National Biography. London: Smith, Elder & Co., 1885-1900. Print
  3. Bardsley, C.W, A Dictionary of English and Welsh Surnames: With Special American Instances. Wiltshire: Heraldry Today, 1901. Print. (ISBN 0-900455-44-6)
  4. The Norman People and Their Existing Descendants in the British Dominions and the United States Of America. Baltimore: Genealogical Publishing, 1975. Print. (ISBN 0-8063-0636-X)


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