as a Last Name
- 2,869
- people in the U.S. have this name Get contact details for people named Tiernan
Meaning & Origins
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.
| 11,058th in the U.S. for 2011 |
Nicknames & variations
Quick facts
- Thousands
- of people in the U.S have this name
- 2,869
- to be exact (as of February 2011)
- Rhode Island
- has the most people named Tiernan per capita
Top state populations
U.S. Distribution Map
