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Brennan
BoyMeaning of Brennan: Irish: 'little drop'
Brennan is a boy's name most strongly associated with Irish naming. It has 7 letters and 2 syllables, and it is familiar but far from overused — 972nd most popular boys' name in the United States in 2025 and 2921st in England & Wales.
US rank 2025
#972
236 babies in 2025
England & Wales 2024
#2921
7 babies in 2024
US babies since 1880
35,487
First recorded 1916 · peak 2009
Trend
falling
Style: uncommon
Popularity over time
Gender split
94% boys · 6% girls, based on US, UK and international usage.
Origins & cultures
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