unisex name
Kiernan
- Gender Unisex
- Syllables 2
- Letters 7
- Popularity Uncommon
- Births on record 2,642
Northern Ireland
#443
2008 births
Kiernan is a unisex name with 2 syllables. It is given to both girls and boys — about 26% of recorded births with this name are girls. In 2025 it was given to 43 babies in the United States. It is used consistently but remains uncommon.
- Peaked in 2008, when 104 babies were given the name.
- Its usage has held steady over the past decade.
- Today about 1 in 77,101 babies in the United States is given this name.
- First appears in US birth records in 1957.
- 2 syllables, with the stress on syllable 1.
Kiernan over time
Births per decade in the United States, 1950s to 2020s. The striped bar is the 2020s, still in progress — it covers 2020 to 2025, not a full ten years.
Show the numbers
| Decade | Births |
|---|---|
| 1950s | 5 |
| 1960s | 9 |
| 1970s | 31 |
| 1980s | 126 |
| 1990s | 489 |
| 2000s | 879 |
| 2010s | 623 |
| 2020s (to 2025) | 286 |
How popular is Kiernan?
In 2025, Kiernan was given to 43 babies in the United States. It is used consistently but remains uncommon.
Where Kiernan is used
US figures omit any name given to fewer than five babies in a year, so the rarest names are absent from the source rather than absent from use. Data & sources.
Names that peaked alongside Kiernan
These names rose and fell in the same era, which is why they tend to sound like they belong together.
Parents who like Kiernan also like
Names whose popularity has risen and fallen in step with Kiernan over the last century — the same taste, a different name.
Sibling names for Kiernan
Names from the same era that won't rhyme or share an initial with Kiernan — the two things that make a sibling set grate.
Common questions about Kiernan
How popular is the name Kiernan?
In 2025, Kiernan was given to 43 babies in the United States. It is used consistently but remains uncommon.
Is Kiernan a girl's or a boy's name?
Kiernan is used for both girls and boys. About 26% of recorded births with this name are girls.
How many syllables are in Kiernan?
Kiernan has 2 syllables.
When was Kiernan most popular?
Kiernan peaked in 2008, when 104 babies were given the name. Its usage has held steady over the past decade.
Is Kiernan a good name?
That is not something records can settle, but they can tell you what you would be choosing. Kiernan currently ranks #3,438 in the United States. Its usage has held steady over the past decade. Everything else — how it sounds with your surname, who it reminds you of — is yours.