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#10,000rank188019001920194019601980200020202023peak #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
1943
1942
1941
1940
1939
1938
1937
1936
1935
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1932
1931
1930
1929
1928
1927
1926
1925
1924
1923
1922
1921
1920
1919
1918
1917
1916#3,8975
1915
1914
1913
1912
1911
1910
1909
1908
1907
1906
1905
1904
1903
1902
1901
1900
1899
1898
1897
1896
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1894
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1889
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1882
1881
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.

Where Brennan is popular in 2023

  • Rank in state
  • Top 10
  • 11–50
  • 51–100
  • 101–500
  • 501+
  • Not published
Alaska: fewer than 5 boys named Brennan, so not publishedAKMaine: fewer than 5 boys named Brennan, so not publishedMEVermont: fewer than 5 boys named Brennan, so not publishedVTNew Hampshire: fewer than 5 boys named Brennan, so not publishedNHWashington: #981 for boys · 5 births · 1 in 6,331 boysWAIdaho: fewer than 5 boys named Brennan, so not publishedIDMontana: fewer than 5 boys named Brennan, so not publishedMTNorth Dakota: fewer than 5 boys named Brennan, so not publishedNDMinnesota: fewer than 5 boys named Brennan, so not publishedMNIllinois: #1,285 for boys · 5 births · 1 in 10,032 boysILWisconsin: fewer than 5 boys named Brennan, so not publishedWIMichigan: fewer than 5 boys named Brennan, so not publishedMINew York: #1,211 for boys · 9 births · 1 in 9,530 boysNYMassachusetts: fewer than 5 boys named Brennan, so not publishedMARhode Island: fewer than 5 boys named Brennan, so not publishedRIOregon: fewer than 5 boys named Brennan, so not publishedORNevada: fewer than 5 boys named Brennan, so not publishedNVWyoming: fewer than 5 boys named Brennan, so not publishedWYSouth Dakota: fewer than 5 boys named Brennan, so not publishedSDIowa: fewer than 5 boys named Brennan, so not publishedIAIndiana: fewer than 5 boys named Brennan, so not publishedINOhio: #1,130 for boys · 6 births · 1 in 8,747 boysOHPennsylvania: #730 for boys · 11 births · 1 in 4,729 boysPANew Jersey: #828 for boys · 7 births · 1 in 5,767 boysNJConnecticut: fewer than 5 boys named Brennan, so not publishedCTCalifornia: #1,369 for boys · 13 births · 1 in 13,836 boysCAUtah: fewer than 5 boys named Brennan, so not publishedUTColorado: fewer than 5 boys named Brennan, so not publishedCONebraska: fewer than 5 boys named Brennan, so not publishedNEMissouri: #613 for boys · 8 births · 1 in 3,356 boysMOKentucky: fewer than 5 boys named Brennan, so not publishedKYWest Virginia: #334 for boys · 5 births · 1 in 1,295 boysWVVirginia: #582 for boys · 12 births · 1 in 3,104 boysVAMaryland: #699 for boys · 6 births · 1 in 3,872 boysMDDelaware: fewer than 5 boys named Brennan, so not publishedDEArizona: #823 for boys · 6 births · 1 in 5,417 boysAZNew Mexico: fewer than 5 boys named Brennan, so not publishedNMKansas: fewer than 5 boys named Brennan, so not publishedKSArkansas: fewer than 5 boys named Brennan, so not publishedARTennessee: #482 for boys · 15 births · 1 in 2,382 boysTNNorth Carolina: fewer than 5 boys named Brennan, so not publishedNCSouth Carolina: fewer than 5 boys named Brennan, so not publishedSCDistrict of Columbia: fewer than 5 boys named Brennan, so not publishedDCOklahoma: fewer than 5 boys named Brennan, so not publishedOKLouisiana: #489 for boys · 10 births · 1 in 2,043 boysLAMississippi: #418 for boys · 7 births · 1 in 1,639 boysMSAlabama: fewer than 5 boys named Brennan, so not publishedALGeorgia: fewer than 5 boys named Brennan, so not publishedGAHawaii: fewer than 5 boys named Brennan, so not publishedHITexas: #1,115 for boys · 19 births · 1 in 9,337 boysTXFlorida: #1,349 for boys · 8 births · 1 in 11,778 boysFL

Hover or tap a state for its numbers.

Top states · boys
  1. West Virginia#334 · 1 in 1,295
  2. Mississippi#418 · 1 in 1,639
  3. Tennessee#482 · 1 in 2,382
  4. Louisiana#489 · 1 in 2,043
  5. Virginia#582 · 1 in 3,104

Best ever in a state: #65 in Hawaii, 2008.

Show every state
StateRankBirthsShare
West Virginia#33451 in 1,295
Mississippi#41871 in 1,639
Tennessee#482151 in 2,382
Louisiana#489101 in 2,043
Virginia#582121 in 3,104
Missouri#61381 in 3,356
Maryland#69961 in 3,872
Pennsylvania#730111 in 4,729
Arizona#82361 in 5,417
New Jersey#82871 in 5,767
Washington#98151 in 6,331
Texas#1,115191 in 9,337
Ohio#1,13061 in 8,747
New York#1,21191 in 9,530
Illinois#1,28551 in 10,032
Florida#1,34981 in 11,778
California#1,369131 in 13,836
Alabama
Alaska
Arkansas
Colorado
Connecticut
Delaware
District of Columbia
Georgia
Hawaii
Idaho
Indiana
Iowa
Kansas
Kentucky
Maine
Massachusetts
Michigan
Minnesota
Montana
Nebraska
Nevada
New Hampshire
New Mexico
North Carolina
North Dakota
Oklahoma
Oregon
Rhode Island
South Carolina
South Dakota
Utah
Vermont
Wisconsin
Wyoming

Ranks are within each state; “1 in N” is out of the boys born there that year. The SSA only publishes a name in a state when 5 or more babies of one sex got it.

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 2023

girls
#6,922
16 births · 1 in 100,286 girls
boys
#1,024
213 births · 1 in 8,031 boys

Top girls' names in 2023

  1. #1Olivia15,329
  2. #2Emma13,590
  3. #3Charlotte12,638
  4. #4Amelia12,365
  5. #5Sophia11,999
  6. #6Mia11,404
  7. #7Isabella10,871
  8. #8Ava9,737
  9. #9Evelyn9,121
  10. #10Luna7,853
  11. #6,922Brennan16

Top boys' names in 2023

  1. #1Liam20,904
  2. #2Noah19,116
  3. #3Oliver14,792
  4. #4James11,739
  5. #5Elijah11,523
  6. #6Mateo11,293
  7. #7Theodore11,093
  8. #8Henry10,996
  9. #9Lucas10,890
  10. #10William10,673
  11. #1,024Brennan213
More about 2023

girls

1,604,582 girls got a published name in 2023; 1 in 100,286 of them was named Brennan, which outranked 60.7% of the 17,615 girls' names that year. The ten most popular names covered 7.2% of girls (24.6% in 1880, 7.0% in 2025).

Ranked beside Brennan
  1. #6,680Zohra17
  2. #6,680Zurielle17
  3. #6,680Zyrah17
  4. #6,922Brennan16
  5. #6,922Aariah16
  6. #6,922Aashi16
  7. #6,922Aasiya16
  8. #7,247Aafiya15
  9. #7,247Aamina15
  10. #7,247Aaminah15

Tied with 324 names at #6,922; 3 shown. Tied names share a rank, as in SSA's lists.

Biggest movers since 2022
Risers
  1. 1,640Kaeli#2,319#679
  2. 1,512Alitzel#2,388#876
  3. 1,287Emryn#2,174#887
  4. 813Adhara#1,583#770
  5. 717Azari#1,412#695
Fallers
  1. 364Addilynn#940#1,304
  2. 296India#968#1,264
  3. 259Madisyn#805#1,064
  4. 231Chanel#937#1,168
  5. 219Averi#906#1,125

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

boys

1,710,576 boys got a published name in 2023; 1 in 8,031 of them was named Brennan, which outranked 92.8% of the 14,215 boys' names that year. The ten most popular names covered 7.8% of boys (44.2% in 1880, 8.0% in 2025).

Ranked beside Brennan
  1. #1,019Kabir214
  2. #1,019Kristian214
  3. #1,019Zaylen214
  4. #1,024Brennan213
  5. #1,024Beaux213
  6. #1,024Coen213
  7. #1,024Dangelo213
  8. #1,031Campbell212
  9. #1,031Kilian212
  10. #1,031Tiago212

Tied with 6 names at #1,024; 3 shown. Tied names share a rank, as in SSA's lists.

Biggest movers since 2022
Risers
  1. 858Izael#1,665#807
  2. 662Chozen#1,479#817
  3. 589Eiden#1,479#890
  4. 409Cassian#938#529
  5. 385Kyren#1,322#937
Fallers
  1. 384Dior#842#1,226
  2. 275Maxton#963#1,238
  3. 205Davian#967#1,172
  4. 193Braden#935#1,128
  5. 191Heath#862#1,053

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

See the top 100 for 2023