Show ContentsKierans History, Family Crest & Coats of Arms

Gaelic, otherwise known as Early Modern Irish, was used in Ireland from around the year 1200 until the 18th century. It is from this language that we found the first references to the name Kierans as Ó Ciarain or Mac Ciarain. These names are derived from the word "ciar," which means "black" or "dark brown." 1

Early Origins of the Kierans family

The surname Kierans was first found in County Mayo (Irish: Maigh Eo) located on the West coast of the Republic of Ireland in the province of Connacht, where they held a family seat from ancient times.

Early History of the Kierans family

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

Kierans Spelling Variations

Just like the English language, the Gaelic language of Ireland was not standardized in the Middle Ages. Therefore, one's name was often recorded under several different spellings during the life of its bearer. Spelling variations revealed in the search for the origins of the Kierans family name include Kieran, O'Kieran, Keiran, Keighran, O'Keiran, Kerin and many more.

Early Notables of the Kierans family

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

Migration of the Kierans family

Death and immigration greatly reduced Ireland's population in the 19th century. For the native Irish people poverty, hunger, and racial prejudice was common. Therefore, thousands left their homeland to seek opportunity in North America. Those who survived the journey and the quarantine camps to which they arrived, were instrumental towards building the strong developing nations of the United States and the future Canada. By far, the largest influx of Irish settlers occurred with Great Potato Famine during the late 1840s. These were employed as construction or factory workers. An examination of passenger and immigration lists has shown early immigrants bearing the name Kierans: James, Patrick and Thomas, who Keiran arrived in Philadelphia between 1840 and 1860; John and Thomas Kieran settled in Philadelphia between 1858 and 1868. In Newfoundland, William Kearon, from Tallon, Waterford county, Ireland, was married in St. John's in 1801.



The Kierans Motto +

The motto was originally a war cry or slogan. Mottoes first began to be shown with arms in the 14th and 15th centuries, but were not in general use until the 17th century. Thus the oldest coats of arms generally do not include a motto. Mottoes seldom form part of the grant of arms: Under most heraldic authorities, a motto is an optional component of the coat of arms, and can be added to or changed at will; many families have chosen not to display a motto.

Motto: Fidens et constans
Motto Translation: Stand firm on trust.


  1. MacLysaght, Edward, The Surnames of Ireland. Ireland: Irish Academic Press, sixth edition, 1985. Print. (ISBN 0-7165-2366-3)


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