Kiernan
How to say it: KEER-nun · /ˈkɪrnən/
From Irish surname O Ciarain meaning 'little dark one' - adopted as first name from surname tradition.
Kiernan was the 2,651st most popular boys’ name in the United States in 2025, given to 43 babies of either sex (Social Security Administration). Its busiest decade was the 2000s, its births are down about 14% in ten years, and it is projected to slip to #2,741 by 2030.
Updated · SSA 2025 data, published May 2026 · How we compute these figures
Key facts
| Rank among boys’ names, 2025 | #2,651 |
|---|---|
| Babies born in 2025 (both sexes) | 43 |
| Share of births | 1 in 77,101 |
| Peak decade | 2000s |
| Change over 10 years | −14% |
| Projected rank for 2030 (estimate) | #2,741 |
Sources: Social Security Administration (SSA). How we compute these figures.
Its life, decade by decade
Kiernan is a newcomer: almost all of its history is from the last forty years.
What goes with it
In the classroom
In a class of 25 children born in 2025, the chance that another child is called Kiernan is about under 1 in 200.
Around the world
This spelling is used in English, Irish.
Famous people named Kiernan
- Kiernan Shipka (born 1999)American actress
- Kiernan Dewsbury-Hall (born 1998)English association football player
From Wikidata and Wikipedia
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