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The tiernan Surname

tiernan Name Meaning and History

Irish (Westmeath and Mayo): reduced Anglicized form of Gaelic Ó Tíghearnáin ‘descendant of Tíghearnán’, a diminutive of Tighearna, a byname meaning ‘lord’, ‘master’. Compare Tierney, McKiernan. Woulfe believes Ó Tíghearnáin to be a variant of Ó Tíghearnaigh (see Tierney) in both counties.

Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4
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The tiernan name in History

A unique volume of fascinating facts, statistics and commentary following the tiernan family name as far back in history as possible.

tiernan Family Facts

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Distribution of tiernan Families in the US in 1920
Number of tiernan families
 47-92
 16-46		 1-15
 0
Compiled by Ancestry.com from the 1920 US Federal Census records

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Year

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