Show ContentsCailan History, Family Crest & Coats of Arms

The name Cailan comes from the Irish Gaelic name Ó Cathalain. The Gaelic versions of today's Irish names demonstrate a link to a proud, ancient past. The name is possibly derived from Cathalan, King of Farney slain in 1028, whose name means Little Charles. Cathalan was in turn descended from Coleman Mor, King of Meath and (the 133rd Monarch of Ireland). 1

Early Origins of the Cailan family

The surname Cailan 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 very ancient times.

Caillin (fl. 560), was an Irish saint, "son of Niata, descended from Rudraighe, whose grandson, Fergus Mac Roigh, flourished at the beginning of the Christian era. His mother was Deighe, granddaughter of Dubhthach, chief poet of King Laogaire in the time of St. Patrick. The authority for the history of St. Caillin is the ancient ‘Book of Fenagh,’ a series of poetical rhapsodies, written about 1400, a copy of which with a connecting narrative in prose was made in 1516. we may gather the following facts of St. Caillin's history from this curious repertory of ancient traditions: ‘The descendants of Medbh and Fergus, viz. the children of Conmac, Ciar, and Corc, grew and multiplied throughout Ireland. The children of Conmac especially were in Connaught.’ Those were the Conmaicne of Dunmor, kinsmen of Caillin's. Resolved to remedy the congestion of the population by killing each other, the Conmaicne would no doubt have carried out their plan but for the interference of St. Caillin. By the advice of an angel they sent messengers to him at Rome, whither he had gone for his education." 2

Early History of the Cailan family

This web page shows only a small excerpt of our Cailan research. Another 149 words (11 lines of text) covering the years 1027 and 1280 are included under the topic Early Cailan History in all our PDF Extended History products and printed products wherever possible.

Cailan Spelling Variations

The Middle Ages saw a great number of spelling variations for surnames common to the Irish landscape. One reason for these variations is the fact that surnames were not rigidly fixed by this period. The following variations for the name Cailan were encountered in the archives: Callan, Callanan, Caillan, Calan, Calanan, Callen, Callin, Callon, Callinan, Callinon and many more.

Early Notables of the Cailan family

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

Migration of the Cailan family

In the 19th century, thousands of Irish left their English-occupied homeland for North America. Like most new world settlers, the Irish initially settled on the eastern shores of the continent but began to move westward with the promise of owning land. The height of this Irish migration came during the Great Potato Famine of the late 1840s. With apparently nothing to lose, Irish people left on ships bound for North America and Australia. Unfortunately a great many of these passengers lost their lives - the only thing many had left - to disease, starvation, and accidents during the long and dangerous journey. Those who did safely arrive in "the land of opportunities" were often used for the hard labor of building railroads, coal mines, bridges, and canals. The Irish were critical to the quick development of the infrastructure of the United States and Canada. Passenger and immigration lists indicate that members of the Cailan family came to North America quite early: Peter Callan who settled in Cape Elizabeth, Maine in 1683; Charles Callan settled in Delaware in 1772; Alexander Callan settled in Wilmington, N.C. in 1774.



  1. O'Hart, John, Irish Pedigrees 5th Edition in 2 Volumes. Baltimore: Genealogical Publishing Company, 1976. Print. (ISBN 0-8063-0737-4)
  2. Smith, George (ed), Dictionary of National Biography. London: Smith, Elder & Co., 1885-1900. Print


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