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Brennan
OriginIrish
Meaning"descendent of the sad one"
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's take: The name Brennan is a girl's name of Irish origin meaning "descendent of the sad one".
Popularity & trends
US popularity — history
US rank, lower is more popular · SSA data 2014–2025
Actual · SSA
20142025
18802025
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"
Brennan in blog posts
Save Brennan
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