Brennan
Boy
Brennan is a boys' name, meaning “descendant of Braonán”. In 2025 it ranked 2,742nd for boys in the UK (8 babies) and 1,002nd for boys in the US (226 babies).
What does Brennan mean?
“descendant of Braonán”
A male given name transferred from the surname, of mostly American usage.
From Wiktionary, CC BY-SA 4.0.
Is Brennan a girl's or a boy's name?
Brennan is a boys' name. In 2025, it was given to 8 boys in the UK and 10 girls and 226 boys in the US.
How popular is Brennan in the UK?
- Rank in 2025
- #2,742among boys
- Babies in 2025
- 8about 1 in 37,000 boys
- Five-year trend
- Fallingdown 25% in five years
- Same name in a class
- under 1%chance among 15 boys
In 2025, 8 boys in the UK were named Brennan, making it the 2,742nd most popular name for boys. Five years earlier, in 2020, it was 2,359th. Its busiest year was 2002, with 38 boys.
Half of all the boys named Brennan in the UK since 1996 were born between 2001 and 2012. It was already well used in 1996, when the records begin, so earlier boys aren't counted.
Among boys in 2025, it was 2,658th in England and Wales.
Brennan in the UK, year by year
| Year | Boys | Rank |
|---|---|---|
| 2025 | 8 | #2,742 |
| 2024 | 7 | #3,003 |
| 2023 | 6 | #3,279 |
| 2022 | 8 | #2,678 |
| 2021 | 8 | #2,619 |
| 2020 | 9 | #2,359 |
| 2019 | 9 | #2,399 |
| 2018 | 10 | #2,234 |
| 2017 | 7 | #2,875 |
| 2016 | 16 | #1,655 |
| 2015 | 14 | #1,779 |
| 2014 | 15 | #1,650 |
| 2013 | 21 | #1,290 |
| 2012 | 25 | #1,166 |
| 2011 | 20 | #1,338 |
| 2010 | 18 | #1,452 |
| 2009 | 25 | #1,115 |
| 2008 | 28 | #1,020 |
| 2007 | 25 | #1,065 |
| 2006 | 30 | #894 |
| 2005 | 28 | #895 |
| 2004 | 19 | #1,110 |
| 2003 | 24 | #900 |
| 2002 | 38 | #598 |
| 2001 | 37 | #576 |
| 2000 | 37 | #578 |
| 1999 | 31 | #633 |
| 1998 | 25 | #730 |
| 1997 | 25 | #716 |
| 1996 | 20 | #797 |
How popular is Brennan in the US?
- Rank in 2025
- #1,002among boys
- Babies in 2025
- 226about 1 in 7,600 boys
- Five-year trend
- Fallingdown 38% in five years
- Same name in a class
- under 1%chance among 15 boys
In 2025, 226 boys in the US were named Brennan, making it the 1,002nd most popular name for boys. Five years earlier, in 2020, it was 764th. Its busiest year was 2009, with 1,464 boys. It first appears in the records in 1916. 10 girls were also named Brennan in 2025 (9,454th for girls).
Half of all the boys named Brennan in the US since 1880 were born between 1995 and 2010, the years shaded on the chart below.
In 2025, 267 boys in the US were given Brennan or a name that sounds the same. With every name's spellings counted this way, that ranks #830, up from #1,002 for this spelling alone.
Brennan in the US, year by year
| Year | Boys | Rank |
|---|---|---|
| 2025 | 226 | #1,002 |
| 2024 | 207 | #1,057 |
| 2023 | 213 | #1,024 |
| 2022 | 224 | #995 |
| 2021 | 265 | #871 |
| 2020 | 315 | #764 |
| 2019 | 340 | #719 |
| 2018 | 382 | #661 |
| 2017 | 464 | #585 |
| 2016 | 549 | #534 |
| 2015 | 690 | #444 |
| 2014 | 806 | #387 |
| 2013 | 927 | #345 |
| 2012 | 1,011 | #318 |
| 2011 | 1,177 | #293 |
| 2010 | 1,279 | #270 |
| 2009 | 1,464 | #242 |
| 2008 | 1,316 | #263 |
| 2007 | 1,207 | #286 |
| 2006 | 1,116 | #299 |
| 2005 | 1,054 | #312 |
| 2004 | 1,061 | #300 |
| 2003 | 1,127 | #276 |
| 2002 | 1,121 | #273 |
| 2001 | 1,121 | #274 |
| 2000 | 1,158 | #276 |
| 1999 | 1,106 | #270 |
| 1998 | 1,051 | #274 |
| 1997 | 967 | #288 |
| 1996 | 895 | #297 |
| 1995 | 916 | #288 |
| 1994 | 756 | #329 |
| 1993 | 663 | #356 |
| 1992 | 642 | #368 |
| 1991 | 698 | #346 |
| 1990 | 606 | #382 |
| 1989 | 445 | #446 |
| 1988 | 460 | #421 |
| 1987 | 422 | #428 |
| 1986 | 292 | #520 |
| 1985 | 253 | #553 |
| 1984 | 232 | #562 |
| 1983 | 182 | #633 |
| 1982 | 152 | #706 |
| 1981 | 139 | #735 |
| 1980 | 142 | #737 |
| 1979 | 136 | #740 |
| 1978 | 123 | #760 |
| 1977 | 108 | #819 |
| 1976 | 99 | #838 |
| 1975 | 102 | #822 |
| 1974 | 89 | #849 |
| 1973 | 69 | #971 |
| 1972 | 57 | #1,069 |
| 1971 | 78 | #920 |
| 1970 | 73 | #931 |
| 1969 | 66 | #944 |
| 1968 | 58 | #958 |
| 1967 | 53 | #992 |
| 1966 | 53 | #998 |
| 1965 | 36 | #1,271 |
| 1964 | 30 | #1,434 |
| 1963 | 32 | #1,374 |
| 1962 | 24 | #1,624 |
| 1961 | 25 | #1,601 |
| 1960 | 17 | #1,972 |
| 1959 | 11 | #2,529 |
| 1958 | 14 | #2,176 |
| 1957 | 9 | #2,820 |
| 1956 | 11 | #2,495 |
| 1955 | 10 | #2,557 |
| 1954 | 8 | #2,940 |
| 1953 | 6 | #3,423 |
| 1952 | 0 | – |
| 1951 | 5 | #3,712 |
| 1950 | 6 | #3,328 |
| 1949 | 6 | #3,296 |
| 1948 | 0 | – |
| 1947 | 0 | – |
| 1946 | 0 | – |
| 1945 | 0 | – |
| 1944 | 0 | – |
| 1943 | 0 | – |
| 1942 | 0 | – |
| 1941 | 0 | – |
| 1940 | 0 | – |
| 1939 | 0 | – |
| 1938 | 0 | – |
| 1937 | 0 | – |
| 1936 | 0 | – |
| 1935 | 0 | – |
| 1934 | 0 | – |
| 1933 | 0 | – |
| 1932 | 0 | – |
| 1931 | 0 | – |
| 1930 | 0 | – |
| 1929 | 0 | – |
| 1928 | 0 | – |
| 1927 | 0 | – |
| 1926 | 0 | – |
| 1925 | 0 | – |
| 1924 | 0 | – |
| 1923 | 0 | – |
| 1922 | 0 | – |
| 1921 | 0 | – |
| 1920 | 0 | – |
| 1919 | 0 | – |
| 1918 | 0 | – |
| 1917 | 0 | – |
| 1916 | 5 | #3,896 |
Names like Brennan
Names given in the same years and the same naming tradition, with a similar sound.
Declan Brogan Keegan Conan Ronan Brody Finn Aiden Brayden Conlan Regan Kayden