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Worldwide Name Statistics

Brennan

Ranked #1135 - 1 in 234,288 people
US

Most common in

United States

34k bearers

World total

34,146

estimated living bearers

Global rank

#1135

worldwide

Country breakdown

United States34k
Worldwide
~34k
rank #1135
Rarity
1 in 234,288
of people globally
Gender split
94/6
male / female %
Countries covered
1
~34k in US

About the name Brennan

There are an estimated 34,146 people named Brennan alive worldwide today. That ranks Brennan at #1135 globally, with the highest concentrations in United States.

In the United States, Brennan is held by approximately 34,146 people, ranking #1135 among first names. That works out to roughly 10 per 100,000 Americans (or 1 in 9,720 U.S. residents).

Brennan is used by both genders, 93.7% male and 6.3% female.

Brennan appears in birth records going back to 1880. Use the chart below to see how its popularity has changed across decades, and the surname section to find common pairings.

Gender distribution

Based on historical birth records, this name is used predominantly male.

Male 93.7%Female 6.3%

Brennan popularity by year

U.S. births per year for Brennan, 1916 to 2025 (source: SSA name files).

Show data table
  1. 1916: 5
  2. 1949: 6
  3. 1950: 6
  4. 1951: 5
  5. 1953: 6
  6. 1954: 8
  7. 1955: 10
  8. 1956: 11
  9. 1957: 9
  10. 1958: 14
  11. 1959: 11
  12. 1960: 17
  13. 1961: 25
  14. 1962: 24
  15. 1963: 32
  16. 1964: 30
  17. 1965: 36
  18. 1966: 53
  19. 1967: 53
  20. 1968: 58
  21. 1969: 66
  22. 1970: 73
  23. 1971: 78
  24. 1972: 57
  25. 1973: 75
  26. 1974: 96
  27. 1975: 113
  28. 1976: 109
  29. 1977: 116
  30. 1978: 139
  31. 1979: 152
  32. 1980: 165
  33. 1981: 153
  34. 1982: 171
  35. 1983: 207
  36. 1984: 260
  37. 1985: 273
  38. 1986: 322
  39. 1987: 456
  40. 1988: 488
  41. 1989: 478
  42. 1990: 647
  43. 1991: 751
  44. 1992: 692
  45. 1993: 720
  46. 1994: 832
  47. 1995: 978
  48. 1996: 955
  49. 1997: 1,019
  50. 1998: 1,116
  51. 1999: 1,164
  52. 2000: 1,200
  53. 2001: 1,181
  54. 2002: 1,179
  55. 2003: 1,168
  56. 2004: 1,124
  57. 2005: 1,101
  58. 2006: 1,185
  59. 2007: 1,307
  60. 2008: 1,399
  61. 2009: 1,550
  62. 2010: 1,360
  63. 2011: 1,264
  64. 2012: 1,084
  65. 2013: 993
  66. 2014: 863
  67. 2015: 730
  68. 2016: 584
  69. 2017: 508
  70. 2018: 412
  71. 2019: 372
  72. 2020: 347
  73. 2021: 295
  74. 2022: 250
  75. 2023: 229
  76. 2024: 226
  77. 2025: 236

Frequently asked questions

How many people are named Brennan worldwide?

There are an estimated 34,146 people named Brennan alive worldwide today, ranking #1135 globally.

Is Brennan a rare name?

Worldwide that works out to about 1 in 234,288 people. In the United States there are roughly 34,146 bearers, which is 1 in 9,720 Americans.

Is Brennan a boy or girl name?

Based on historical birth records, Brennan is used 93.7% male and 6.3% female.

Where does the name Brennan come from?

Who are famous people named Brennan?

Data sources

Every figure on this page is cited. See the methodology page for the full picture.

Last updated:

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