Brennan
About Brennan
Brennan is an Irish last name that could join the group of similar names now ranking among the top Irish names for baby girls in the US: Riley, Kennedy, and Quinn. Currently, only 16 baby girls were named Brennan versus over 200 boys, but those numbers could well become more equal.
Pronounced BREN-un.
As of October 2026, Brennan ranked #9557 in US births in 2025 SSA, peaked at #1867 in 1994.
Editor: Pamela Redmond
Sources: US popularity data is from the Social Security Administration. Meanings and origins are from Nameberry's name references.
Popularity & trends
Data table
| Year | US rank | Births | Per million |
|---|---|---|---|
| 2014 | #2,973 | 57 | 31.9 |
| 2015 | #3,782 | 40 | 22.4 |
| 2016 | #4,175 | 35 | 19.8 |
| 2017 | #3,493 | 44 | 25.5 |
| 2018 | #4,575 | 30 | 17.6 |
| 2019 | #4,358 | 32 | 19.1 |
| 2020 | #4,280 | 32 | 19.8 |
| 2021 | #4,528 | 30 | 18.3 |
| 2022 | — | 0 | 0 |
| 2023 | — | 0 | 0 |
| 2024 | — | 0 | 0 |
| 2025 | — | 0 | 0 |
Similar names
These 20 names were selected by our users looking for other names like Brennan.
- Finlee
- Carlin
- Loren
- Melle
- Aislin
- Caydence
- Aidrian
- Karalie
- Finlay
- Keelan
- Keelin
- Brinsley
- Perrie
- Romee
- Karis
- Leena
- Devan
- Embry
- Bryce
- Layton
Brennan on lists
Famous Brennans
- Kiernan Brennan "Kiki" Shipka
child actress (plays Sally Draper on 'Mad Men' & Cathy in the TV movie 'Flowers in the Attic')
Brennan in pop culture
- Temperance Brennan
main character on TV show "Bones"