Kiernan History, Family Crest & Coats of Arms 

Origins Available: 
  Ireland 


The original Gaelic form of Kiernan was Mac Thighearnain, which is derived from the word "tighearna," which means "lord."

Early Origins of the Kiernan family

The surname Kiernan was first found in County Cavan, where they held a family seat from ancient times.

Early History of the Kiernan family

This web page shows only a small excerpt of our Kiernan research. Another 53 words (4 lines of text) are included under the topic Early Kiernan History in all our PDF Extended History products and printed products wherever possible.

Kiernan Spelling Variations

A name was often recorded during the Middle Ages under several different spelling variations during the life of its bearer because literacy was rare there was no real push to clearly define any of the languages found in the British Isles at that time. Variations found of the name Kiernan include Kiernan, MacKiernan, Tiernan, McKernan, McKernon, McKernin, McKernen and many more.

Early Notables of the Kiernan family

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

Kiernan Ranking

In the United States, the name Kiernan is the 8,048th most popular surname with an estimated 2,487 people with that name. 1



Kiernan migration to the United States +

A great mass of Ireland's native population left the island in the 19th century, seeking relief from various forms of social, religious, and economic discrimination. This Irish exodus was primarily to North America. If the migrants survived the long ocean journey, many unfortunately would find more discrimination in the colonies of British North America and the fledgling United States of America. These newly arrived Irish were, however, wanted as a cheap source of labor for the many large agricultural and industrial projects that were essential to the development of what would become two of the wealthiest nations in the western world. Early immigration and passenger lists indicate many people bearing the Kiernan name:

Kiernan Settlers in United States in the 19th Century

Kiernan migration to Canada +

Some of the first settlers of this family name were:

Kiernan Settlers in Canada in the 19th Century

Kiernan migration to Australia +

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

Kiernan Settlers in Australia in the 19th Century

Contemporary Notables of the name Kiernan (post 1700) +







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