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#10,000rank188019001920194019601980200020202015peak #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——
1934——
1933——
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——
1895——
1894——
1893——
1892——
1891——
1890——
1889——
1888——
1887——
1886——
1885——
1884——
1883——
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 2015

  • 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: #169 for boys · 7 births · 1 in 656 boysNHWashington: #515 for boys · 13 births · 1 in 2,829 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: #385 for boys · 14 births · 1 in 2,028 boysMNIllinois: #450 for boys · 26 births · 1 in 2,553 boysILWisconsin: #507 for boys · 9 births · 1 in 3,024 boysWIMichigan: #321 for boys · 28 births · 1 in 1,706 boysMINew York: #467 for boys · 34 births · 1 in 3,025 boysNYMassachusetts: #290 for boys · 18 births · 1 in 1,642 boysMARhode Island: fewer than 5 boys named Brennan, so not publishedRIOregon: #457 for boys · 8 births · 1 in 2,267 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: #453 for boys · 7 births · 1 in 2,253 boysIAIndiana: #372 for boys · 19 births · 1 in 1,903 boysINOhio: #291 for boys · 42 births · 1 in 1,436 boysOHPennsylvania: #315 for boys · 35 births · 1 in 1,709 boysPANew Jersey: #398 for boys · 18 births · 1 in 2,311 boysNJConnecticut: #300 for boys · 9 births · 1 in 1,601 boysCTCalifornia: #761 for boys · 35 births · 1 in 6,466 boysCAUtah: fewer than 5 boys named Brennan, so not publishedUTColorado: #551 for boys · 9 births · 1 in 3,075 boysCONebraska: #316 for boys · 8 births · 1 in 1,263 boysNEMissouri: #346 for boys · 19 births · 1 in 1,663 boysMOKentucky: #319 for boys · 14 births · 1 in 1,572 boysKYWest Virginia: #291 for boys · 6 births · 1 in 1,362 boysWVVirginia: #427 for boys · 17 births · 1 in 2,495 boysVAMaryland: #344 for boys · 16 births · 1 in 1,738 boysMDDelaware: fewer than 5 boys named Brennan, so not publishedDEArizona: #458 for boys · 14 births · 1 in 2,640 boysAZNew Mexico: fewer than 5 boys named Brennan, so not publishedNMKansas: #461 for boys · 7 births · 1 in 2,261 boysKSArkansas: #305 for boys · 11 births · 1 in 1,331 boysARTennessee: #314 for boys · 24 births · 1 in 1,523 boysTNNorth Carolina: #383 for boys · 24 births · 1 in 2,167 boysNCSouth Carolina: #480 for boys · 8 births · 1 in 2,689 boysSCDistrict of Columbia: fewer than 5 boys named Brennan, so not publishedDCOklahoma: #571 for boys · 7 births · 1 in 2,967 boysOKLouisiana: #208 for boys · 30 births · 1 in 849 boysLAMississippi: #333 for boys · 9 births · 1 in 1,541 boysMSAlabama: #408 for boys · 11 births · 1 in 2,108 boysALGeorgia: #423 for boys · 23 births · 1 in 2,389 boysGAHawaii: fewer than 5 boys named Brennan, so not publishedHITexas: #607 for boys · 44 births · 1 in 4,275 boysTXFlorida: #536 for boys · 29 births · 1 in 3,391 boysFL

Hover or tap a state for its numbers.

Top states · boys
  1. New Hampshire#169 · 1 in 656
  2. Louisiana#208 · 1 in 849
  3. Massachusetts#290 · 1 in 1,642
  4. West Virginia#291 · 1 in 1,362
  5. Ohio#291 · 1 in 1,436

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

Show every state
StateRankBirthsShare
New Hampshire#16971 in 656
Louisiana#208301 in 849
Massachusetts#290181 in 1,642
Ohio#291421 in 1,436
West Virginia#29161 in 1,362
Connecticut#30091 in 1,601
Arkansas#305111 in 1,331
Tennessee#314241 in 1,523
Pennsylvania#315351 in 1,709
Nebraska#31681 in 1,263
Kentucky#319141 in 1,572
Michigan#321281 in 1,706
Mississippi#33391 in 1,541
Maryland#344161 in 1,738
Missouri#346191 in 1,663
Indiana#372191 in 1,903
North Carolina#383241 in 2,167
Minnesota#385141 in 2,028
New Jersey#398181 in 2,311
Alabama#408111 in 2,108
Georgia#423231 in 2,389
Virginia#427171 in 2,495
Illinois#450261 in 2,553
Iowa#45371 in 2,253
Oregon#45781 in 2,267
Arizona#458141 in 2,640
Kansas#46171 in 2,261
New York#467341 in 3,025
South Carolina#48081 in 2,689
Wisconsin#50791 in 3,024
Washington#515131 in 2,829
Florida#536291 in 3,391
Colorado#55191 in 3,075
Oklahoma#57171 in 2,967
Texas#607441 in 4,275
California#761351 in 6,466
Alaska———
Delaware———
District of Columbia———
Hawaii———
Idaho———
Maine———
Montana———
Nevada———
New Mexico———
North Dakota———
Rhode Island———
South Dakota———
Utah———
Vermont———
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 2015

girls
#3,767
40 births · 1 in 44,627 girls
boys
#444
690 births · 1 in 2,778 boys

Top girls' names in 2015

  1. #1Emma20,487
  2. #2Olivia19,729
  3. #3Sophia17,454
  4. #4Ava16,416
  5. #5Isabella15,667
  6. #6Mia14,943
  7. #7Abigail12,422
  8. #8Emily11,808
  9. #9Charlotte11,415
  10. #10Harper10,311
  11. #3,767Brennan40

Top boys' names in 2015

  1. #1Noah19,680
  2. #2Liam18,410
  3. #3Mason16,675
  4. #4Jacob16,005
  5. #5William15,950
  6. #6Ethan15,103
  7. #7James14,865
  8. #8Alexander14,584
  9. #9Michael14,504
  10. #10Benjamin13,732
  11. #444Brennan690
More about 2015

girls

1,785,098 girls got a published name in 2015; 1 in 44,627 of them was named Brennan, which outranked 80.3% of the 19,130 girls' names that year. The ten most popular names covered 8.4% of girls (24.6% in 1880, 7.0% in 2025).

Ranked beside Brennan
  1. #3,705Zaryah41
  2. #3,705Zayah41
  3. #3,705Zuria41
  4. #3,767Brennan40
  5. #3,767Adelie40
  6. #3,767Advika40
  7. #3,767Aiya40
  8. #3,842Ailany39
  9. #3,842Ainsleigh39
  10. #3,842Airam39

Tied with 74 names at #3,767; 3 shown. Tied names share a rank, as in SSA's lists.

Biggest movers since 2014
Risers
  1. ↑ 1,984Alaia#2,648 → #664
  2. ↑ 1,835Meilani#2,781 → #946
  3. ↑ 1,733Aitana#2,648 → #915
  4. ↑ 1,387Aislinn#2,351 → #964
  5. ↑ 1,072Taya#2,049 → #977
Fallers
  1. ↓ 1,075Isis#703 → #1,778
  2. ↓ 502Annabell#923 → #1,425
  3. ↓ 500Anabel#911 → #1,411
  4. ↓ 344Cindy#711 → #1,055
  5. ↓ 334Anabella#529 → #863

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

boys

1,916,743 boys got a published name in 2015; 1 in 2,778 of them was named Brennan, which outranked 96.8% of the 14,059 boys' names that year. The ten most popular names covered 8.3% of boys (44.2% in 1880, 8.0% in 2025).

Ranked beside Brennan
  1. #441Albert695
  2. #442Hendrix694
  3. #443Raul693
  4. #444Brennan690
  5. #444Franklin690
  6. #444Jamison690
  7. #444Odin690
  8. #448Dillon686
  9. #449Brock679
  10. #450Landyn678

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

Biggest movers since 2014
Risers
  1. ↑ 1,348Riaan#2,277 → #929
  2. ↑ 397Huxley#1,355 → #958
  3. ↑ 355Wilder#1,313 → #958
  4. ↑ 284Jaziel#1,218 → #934
  5. ↑ 268Canaan#1,074 → #806
Fallers
  1. ↓ 676Arnav#891 → #1,567
  2. ↓ 262Jayse#906 → #1,168
  3. ↓ 239Neymar#551 → #790
  4. ↓ 228Rylee#877 → #1,105
  5. ↓ 204Johnathon#915 → #1,119

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

See the top 100 for 2015 →