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Updated June 9, 2019

Boy name origins & meanings

  • Celtic, Gaelic : Lord

Boy name variations

How Popular Is The Name Tiernan

Family name origins & meanings

  • 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.

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