Brennan

#9,457 for girls in 2025, 10 births · #1,002 for boys in 2025, 226 births
Given to boys 93.7% of the time

Showing
Show data for
Peak · boys
2009 · 1,464 births
Debut · boys
5 births
In top 100 · boys
never
of 146 years
Total births · boys
33,258
since 1916

Brennan over time

girlsboys

Rank within each sex, plotted together. Click any year to open it.

#1#10#100#1,000#10,000rank188019001920194019601980200020202013peak #1,862, 1994peak #242, 2009girlsboys
Hover or use arrow keys to read values by year; click or press Enter to open that year.

Gaps mean fewer than 5 babies received the name that year, so the SSA doesn't publish it.

Show data table
Yeargirlsboys
rankbirthsrankbirths
2025#9,45710#1,002226
2024#6,16719#1,057207
2023#6,92216#1,024213
2022#5,02826#995224
2021#4,50730#871265
2020#4,26332#764315
2019#4,34332#719340
2018#4,56230#661382
2017#3,47944#585464
2016#4,15735#534549
2015#3,76740#444690
2014#2,96957#387806
2013#2,66166#345927
2012#2,49573#3181,011
2011#2,17387#2931,177
2010#2,34181#2701,279
2009#2,27086#2421,464
2008#2,33483#2631,316
2007#2,034100#2861,207
2006#2,60269#2991,116
2005#3,25747#3121,054
2004#2,62063#3001,061
2003#3,47241#2761,127
2002#2,64258#2731,121
2001#2,54060#2741,121
2000#3,21642#2761,158
1999#2,47158#2701,106
1998#2,18865#2741,051
1997#2,48152#288967
1996#2,22960#297895
1995#2,15562#288916
1994#1,86276#329756
1993#2,26757#356663
1992#2,51350#368642
1991#2,38853#346698
1990#2,79941#382606
1989#3,16533#446445
1988#3,39328#421460
1987#2,85234#428422
1986#3,05430#520292
1985#3,98320#553253
1984#3,06928#562232
1983#3,24225#633182
1982#4,02519#706152
1981#4,96314#735139
1980#3,50623#737142
1979#4,42016#740136
1978#4,24216#760123
1977#6,8928#819108
1976#5,60110#83899
1975#5,16111#822102
1974#6,9007#84989
1973#7,4356#97169
1972#1,06957
1971#92078
1970#93173
1969#94466
1968#95858
1967#99253
1966#99853
1965#1,27136
1964#1,43530
1963#1,37532
1962#1,62524
1961#1,60225
1960#1,97317
1959#2,53011
1958#2,17714
1957#2,8229
1956#2,49711
1955#2,55810
1954#2,9428
1953#3,4256
1952
1951#3,7145
1950#3,3296
1949#3,2986
1948
1947
1946
1945
1944
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1942
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1925
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1919
1918
1917
1916#3,8975
1915
1914
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1911
1910
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1908
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1905
1904
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1902
1901
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1880
First appearance
1916

The first year at least five boys were named Brennan! It came in at #3,897, and was given to 5 baby boys.


Quietest stretch: 1916–1948, when fewer than 6 boys a year got the name.

See more about Brennan
Momentum · boys
Falling
  • 55 spots since 2024 (#1,057#1,002)
  • 238 spots since 2020 (#764#1,002)
  • 558 spots since 2015 (#444#1,002)
  • Biggest jump: 273 spots in 1966 (#1,271#998)
  • Biggest drop: 149 spots in 1972 (#920#1,069)
Rise & fade · boys
93 yrs to peak
  • Debuted 1916
  • Peaked 2009 at #242 (1,464 births)
  • Births halved by 2015, 6 yrs later
Top of the charts · boys
Top 1,000 for 56 yrs
  • Top 10: never
  • Top 100: never
  • Top 1,000: 56 yrs · run 1973–2022
Share of babies · boys
1 in 1,355
  • Highest: 1 in 1,355 boys born in 2009 were named Brennan (0.07%)
  • Latest: 1 in 7,558 boys born in 2025 (0.01%)
Era · boys
The 2000s
  • 35.3% of all boys named Brennan (11,745) were born in this decade
Girls or boys?
Never flipped
  • The majority has never changed
all girlsall boys
Show by decade
DecadeBirthsBest rankAvg rank
1910s5#3,897 (1916)#3,897
1920s0
1930s0
1940s6#3,298 (1949)#3,298
1950s80#2,177 (1958)#2,888
1960s394#944 (1969)#1,317
1970s934#740 (1979)#872
1980s2,719#421 (1988)#574
1990s8,300#270 (1999)#320
2000s11,745#242 (2009)#280
2010s7,625#270 (2010)#456
2020s1,450#764 (2020)#952

All figures count published births only (names given to at least 5 boys in a year). Registrations before 1937 are incomplete, so early shares and totals run low.

Brennan in 2013

girls
#2,661
66 births · 1 in 26,587 girls
boys
#345
927 births · 1 in 2,041 boys

Top girls' names in 2013

  1. #1Sophia21,255
  2. #2Emma20,973
  3. #3Olivia18,454
  4. #4Isabella17,689
  5. #5Ava15,271
  6. #6Mia13,166
  7. #7Emily13,144
  8. #8Abigail12,429
  9. #9Madison10,605
  10. #10Elizabeth9,476
  11. #2,661Brennan66

Top boys' names in 2013

  1. #1Noah18,291
  2. #2Jacob18,201
  3. #3Liam18,153
  4. #4Mason17,730
  5. #5William16,669
  6. #6Ethan16,260
  7. #7Michael15,544
  8. #8Alexander14,923
  9. #9Jayden14,804
  10. #10Daniel14,326
  11. #345Brennan927
More about 2013

girls

1,754,746 girls got a published name in 2013; 1 in 26,587 of them was named Brennan, which outranked 86.2% of the 19,279 girls' names that year. The ten most popular names covered 8.7% of girls (24.6% in 1880, 7.0% in 2025).

Ranked beside Brennan
  1. #2,626Tylee67
  2. #2,626Zakiyah67
  3. #2,626Zyla67
  4. #2,661Brennan66
  5. #2,661Adara66
  6. #2,661Alysson66
  7. #2,661Ariannah66
  8. #2,681Alasia65
  9. #2,681Aliannah65
  10. #2,681Arriana65

Tied with 19 names at #2,661; 3 shown. Tied names share a rank, as in SSA's lists.

Biggest movers since 2012
Risers
  1. 3,124Daleyza#3,711#587
  2. 736Marjorie#1,646#910
  3. 683Lennon#1,612#929
  4. 561Jurnee#1,457#896
  5. 539Everleigh#1,405#866
Fallers
  1. 827Litzy#598#1,425
  2. 409Geraldine#994#1,403
  3. 384Taraji#858#1,242
  4. 374Marisa#977#1,351
  5. 372Adley#733#1,105

Among names in the top 1,000 of either year.

boys

1,891,581 boys got a published name in 2013; 1 in 2,041 of them was named Brennan, which outranked 97.5% of the 14,070 boys' names that year. The ten most popular names covered 8.7% of boys (44.2% in 1880, 8.0% in 2025).

Ranked beside Brennan
  1. #342Walter939
  2. #343Nehemiah931
  3. #344Knox928
  4. #345Brennan927
  5. #346Pedro925
  6. #347Julius922
  7. #348Allen917
Biggest movers since 2012
Risers
  1. 843Jayceon#1,050#207
  2. 636Milan#1,182#546
  3. 604Atlas#1,383#779
  4. 504Jayse#1,466#962
  5. 423Duke#1,145#722
Fallers
  1. 318Austyn#898#1,216
  2. 291Masen#723#1,014
  3. 274Jaidyn#979#1,253
  4. 267Trevon#925#1,192
  5. 260Bently#637#897

Among names in the top 1,000 of either year.

See the top 100 for 2013