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Tiernan

Say it: TEER-nan

BoyIrishMeans little lord7 letters2 syllables

#115

in Ireland (2025)

#113 with spellings combined

51

babies in 2025

#84

best rank (2022)

1,505

babies since 1964

Up 48

10-year rank change

Tiernan through the years

Compare with another name →
Tiernan: babies per year in Ireland, 1964 to 2025020406080196419701980199020002010202020251998: CSO series changePeak 2022: 76
Tiernan: rank per year in Ireland, 1964 to 2025#1#10#50#100#250#500196419701980199020002010202020251998: CSO series change
Tiernan: per 10,000 boys per year in Ireland, 1964 to 2025010203040196419701980199020002010202020251998: CSO series change
Babies per 10,000 boys listed by the CSO that year, which evens out changes in the number of births.
Show the numbers
YearBabies (boys)Rank
202551#113
202454#107
202349#118
202276#84
202168#94
202058#106
201961#114
201845#136
201749#127
201647#140
201539#161
201441#161
201357#119
201266#109
201157#127
201059#128
200952#136
200858#130
200749#130
200645#126
200550#111
200434#138
200342#115
200228#142
200124#148
200025#146
199927#132
199816#162
199719#162
199610#223
199513#191
19946#247
19939#213
19927#238
199113#179
19904#286
19895#253
198810#196
19869#210
19846#234
19836#237
19823#330
19814#292
19803#321
19797#245
19784#283
19775#273
19764#288
19754#290
19736#254
19725#254
19716#242
19663#256
19654#222
19643#232

Source: CSO, Irish Babies' Names (VSA50, VSA60), CC BY 4.0. Spellings with and without fadas are combined; the CSO only recorded fadas from 2018.

★ What does Tiernan mean?

Little lord

English form of Irish Tiarnán, from tiarna (lord) with the small ending -án.

Say it right

TEERnan

The Irish spelling Tiarnán is said TEER-nawn.

The story of Tiernan

Tiernan is the English spelling of the Irish Tiarnán. It comes from tiarna, “lord”, with the small ending -án, so it is usually explained as “little lord”. It is also an Irish surname.

The best-known bearer in Irish history is Tigernán Ua Ruairc, king of Breifne in the twelfth century. In 1152 his wife Derbforgaill was carried off by Diarmait Mac Murchada, king of Leinster. In 1166 Ua Ruairc helped drive Mac Murchada out of Leinster, and Mac Murchada went abroad to look for help. The Normans who came with that help began the Anglo-Norman invasion of Ireland.

Tiernan was already in use when the CSO data begins in 1964, but only a few boys a year were given it until the 1990s. Its best year was 2022, with 76 boys and number 84. The CSO counts the fada spelling Tiernán separately, and it is still rare. In Northern Ireland the name did best in 2008, when it was 52nd.

Say it differently where you're from, or spotted something wrong? Tell us.

Sources
  • Wiktionary: Tiernan (English proper noun)
  • Wikipedia: Tiernan
  • Wikipedia: Tigernán Ua Ruairc
  • CSO VSA50, Boys Names in Ireland with 3 or More Occurrences

At a glance

Similar names

TiarnánRonanLorcanKieran

Sibling ideas

RóisínAilbheGráinne

Spellings counted here

Spelling2025All years
Tiernan481,496
Tiernán39

In Northern Ireland

#99 in 2025 with 24 babies. Best rank #52 (2008); 1,003 babies since 1997.

Source: NISRA, Open Government Licence.

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