Brennan
3 countries#1002 in United States, 2025Popularity across 3 countries
Each line is scaled to its own peak, so you can compare when Brennan was in fashion in each country, whatever the population size.
Country by country
United States
35,487 births recorded 1916–2025 · currently #1002 · peaked in 2009 with 1,550 births
Most common in: California, Texas, Louisiana, Ohio, Michigan
Source: Social Security Administration, official birth-registration data
France
102 births recorded 1999–2020 · peaked in 2005 with 12 births
Most common in: Charente-Maritime
Source: INSEE, official birth-registration data
Scotland
31 births recorded 2006–2022 · peaked in 2006 with 5 births
Source: National Records of Scotland, official birth-registration data
United States rank history
Brennan’s rank among boys’ names, most recent 20 years on record.
| Year | Rank | vs. prior yr |
|---|---|---|
| 2006 | #299 | — |
| 2007 | #286 | ↑13 |
| 2008 | #263 | ↑23 |
| 2009 | #242 | ↑21 |
| 2010 | #270 | ↓28 |
| 2011 | #293 | ↓23 |
| 2012 | #318 | ↓25 |
| 2013 | #345 | ↓27 |
| 2014 | #387 | ↓42 |
| 2015 | #444 | ↓57 |
| 2016 | #534 | ↓90 |
| 2017 | #585 | ↓51 |
| 2018 | #661 | ↓76 |
| 2019 | #719 | ↓58 |
| 2020 | #764 | ↓45 |
| 2021 | #871 | ↓107 |
| 2022 | #995 | ↓124 |
| 2023 | #1024 | ↓29 |
| 2024 | #1057 | ↓33 |
| 2025 | #1002 | ↑55 |
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Ranked directly next to Brennan in United States, 2025 — a real popularity match, not a subjective list.