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#10,000rank188019001920194019601980200020201983peak #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
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1916—#3,8975
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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 1983

  • 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: fewer than 5 boys named Brennan, so not publishedWAIdaho: 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: #628 for boys · 9 births · 1 in 9,085 boysILWisconsin: #284 for boys · 9 births · 1 in 3,758 boysWIMichigan: #553 for boys · 6 births · 1 in 10,428 boysMINew York: #994 for boys · 6 births · 1 in 19,450 boysNYMassachusetts: #407 for boys · 5 births · 1 in 7,278 boysMARhode Island: fewer than 5 boys named Brennan, so not publishedRIOregon: #289 for boys · 6 births · 1 in 3,065 boysORNevada: 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: #596 for boys · 6 births · 1 in 12,670 boysOHPennsylvania: #468 for boys · 9 births · 1 in 8,517 boysPANew Jersey: fewer than 5 boys named Brennan, so not publishedNJConnecticut: #302 for boys · 5 births · 1 in 3,723 boysCTCalifornia: #647 for boys · 22 births · 1 in 9,405 boysCAUtah: #350 for boys · 5 births · 1 in 3,643 boysUTColorado: fewer than 5 boys named Brennan, so not publishedCONebraska: fewer than 5 boys named Brennan, so not publishedNEMissouri: #372 for boys · 7 births · 1 in 5,119 boysMOKentucky: fewer than 5 boys named Brennan, so not publishedKYWest Virginia: fewer than 5 boys named Brennan, so not publishedWVVirginia: fewer than 5 boys named Brennan, so not publishedVAMaryland: #388 for boys · 5 births · 1 in 5,192 boysMDDelaware: fewer than 5 boys named Brennan, so not publishedDEArizona: fewer than 5 boys named Brennan, so not publishedAZNew 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: fewer than 5 boys named Brennan, so not publishedTNNorth 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: #378 for boys · 12 births · 1 in 3,058 boysLAMississippi: fewer than 5 boys named Brennan, so not publishedMSAlabama: 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: #1,034 for boys · 7 births · 1 in 20,304 boysTXFlorida: fewer than 5 boys named Brennan, so not publishedFL

Hover or tap a state for its numbers.

Top states · boys
  1. Wisconsin#284 · 1 in 3,758
  2. Oregon#289 · 1 in 3,065
  3. Connecticut#302 · 1 in 3,723
  4. Utah#350 · 1 in 3,643
  5. Missouri#372 · 1 in 5,119

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

Show every state
StateRankBirthsShare
Wisconsin#28491 in 3,758
Oregon#28961 in 3,065
Connecticut#30251 in 3,723
Utah#35051 in 3,643
Missouri#37271 in 5,119
Louisiana#378121 in 3,058
Maryland#38851 in 5,192
Massachusetts#40751 in 7,278
Pennsylvania#46891 in 8,517
Michigan#55361 in 10,428
Ohio#59661 in 12,670
Illinois#62891 in 9,085
California#647221 in 9,405
New York#99461 in 19,450
Texas#1,03471 in 20,304
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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 1983

girls
#3,242
25 births · 1 in 66,824 girls
boys
#633
182 births · 1 in 9,849 boys

Top girls' names in 1983

  1. #1Jennifer54,353
  2. #2Jessica45,283
  3. #3Amanda33,749
  4. #4Ashley33,289
  5. #5Sarah27,228
  6. #6Melissa23,475
  7. #7Nicole22,400
  8. #8Stephanie22,329
  9. #9Heather20,747
  10. #10Elizabeth19,842
  11. #3,242Brennan25

Top boys' names in 1983

  1. #1Michael68,004
  2. #2Christopher59,324
  3. #3Matthew50,209
  4. #4David39,201
  5. #5Joshua36,687
  6. #6James36,342
  7. #7Jason35,113
  8. #8Daniel34,748
  9. #9John33,154
  10. #10Robert32,745
  11. #633Brennan182
More about 1983

girls

1,670,609 girls got a published name in 1983; 1 in 66,824 of them was named Brennan, which outranked 73.1% of the 12,074 girls' names that year. The ten most popular names covered 18.1% of girls (24.6% in 1880, 7.0% in 2025).

Ranked beside Brennan
  1. #3,151Yesica26
  2. #3,151Zakia26
  3. #3,151Zaneta26
  4. #3,242Brennan25
  5. #3,242Abagail25
  6. #3,242Adrea25
  7. #3,242Ainsley25
  8. #3,340Alexsis24
  9. #3,340Aliya24
  10. #3,340Andi24

Tied with 97 names at #3,242; 3 shown. Tied names share a rank, as in SSA's lists.

Biggest movers since 1982
Risers
  1. ↑ 6,772Ciji#7,469 → #697
  2. ↑ 6,751Kirby#7,469 → #718
  3. ↑ 2,656Dwan#3,530 → #874
  4. ↑ 1,888Mallory#2,220 → #332
  5. ↑ 987Marquita#1,099 → #112
Fallers
  1. ↓ 656Syreeta#717 → #1,373
  2. ↓ 572Jenilee#817 → #1,389
  3. ↓ 538Tenika#947 → #1,485
  4. ↓ 396Toccara#541 → #937
  5. ↓ 333Venus#950 → #1,283

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

boys

1,792,564 boys got a published name in 1983; 1 in 9,849 of them was named Brennan, which outranked 91.4% of the 7,344 boys' names that year. The ten most popular names covered 23.7% of boys (44.2% in 1880, 8.0% in 2025).

Ranked beside Brennan
  1. #628Sylvester184
  2. #628Waylon184
  3. #632Wilfredo183
  4. #633Brennan182
  5. #633Agustin182
  6. #633Elvis182
  7. #636Darrel181
  8. #637Bryson180
  9. #637Edmund180

Tied names share a rank, as in SSA's lists.

Biggest movers since 1982
Risers
  1. ↑ 2,260Remington#3,108 → #848
  2. ↑ 2,159Trumaine#3,108 → #949
  3. ↑ 1,157Akeem#1,774 → #617
  4. ↑ 738Jacoby#1,654 → #916
  5. ↑ 655Deven#1,622 → #967
Fallers
  1. ↓ 284Marcello#969 → #1,253
  2. ↓ 275Schuyler#845 → #1,120
  3. ↓ 273Jessy#917 → #1,190
  4. ↓ 258Kennith#981 → #1,239
  5. ↓ 220Jarrad#933 → #1,153

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

See the top 100 for 1983 →