Kiernan
21% girls · 79% boys
About Kiernan
Although this surname name is closely related to the more common Irish name Kieran, Kiernan is also a well used family name, tied to thirty-three ancient chieftains. It has on a few occasions been used for girls.
Kiernan for girls#10519 US
Kiernan Shipka, aka Sally Draper on Mad Men, brings this Irish surname into the girls' column. And, like Kieran and Tierney and Tiernan, it's one of the perfectly unisex baby names. Only 14 girls were named Kiernan in the US in a recent year...and three times as many boys. If you want to move beyond Riley and Kennedy to one of the more unusual surname-based Irish names for girls, this may be a good choice.
Pronounced KEER-nun.
As of November 2026, Kiernan ranked #3409 for boys and #10519 for girls in US births in 2025 SSA, peaked at #1694 for boys in 2000 and #3851 for girls in 2002.
Popularity & trends
Data table
| Year | US rank · boys | Births · boys | US rank · girls | Births · girls |
|---|---|---|---|---|
| 2014 | #2,833 | 42 | — | 0 |
| 2015 | #2,942 | 40 | — | 0 |
| 2016 | #3,484 | 32 | — | 0 |
| 2017 | #2,403 | 54 | — | 0 |
| 2018 | #2,823 | 43 | — | 0 |
| 2019 | #3,764 | 29 | #4,719 | 29 |
| 2020 | #3,377 | 33 | — | 0 |
| 2021 | #3,002 | 41 | — | 0 |
| 2022 | #3,658 | 31 | — | 0 |
| 2023 | #3,843 | 29 | — | 0 |
| 2024 | #3,119 | 39 | — | 0 |
| 2025 | #3,409 | 34 | — | 0 |
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These 40 names were selected by our users looking for other names like Kiernan.
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Kiernan on lists
Famous Kiernans
- Kiernan Peter HughesBoy
Mason, English footballer
- Kiernan John Joseph "Skipper" DorneyBoy
Australian army surgeon
- Kiernan BoxBoy
Australian pianist of band Augie March
- Kiernan Jarryd Forbes aka AKABoy
South African rapper
- Kiernan Brennan ShipkaGirl
American actress