Name Legacy

Brennan

Recorded 1916–2025 · United States

Brennan was most popular in 2009, when 1,550 American babies were given the name — ranking #445 that year. In 2025 it ranked #1,988, with 236 births. Across 1880–2025 the Social Security Administration has recorded 35,487 people named Brennan.

Most popular in2009
Rank that year#445
Births that year1,550
Total since 188035,487

Brennan over time

18802025
Births per year. The dot marks Brennan’s peak in 2009. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Names that peaked alongside Brennan

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See Brennan on the interactive charts

Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org