Boy Name · Irish Origin
Brennan
Last reviewed: June 2026
Parents searching for Brennan in 2026 are usually weighing a boy name that is an uncommon, standout choice. The Irish origin gives it cultural weight, and the meaning "Descendant of the sorrowful one" gives it personal weight. The closest stylistic neighbor in our index is Brendan.
Names like Brennan
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- Brennen — meaning, origin and popularity
- Brandan — meaning, origin and popularity
- Brannon — meaning, origin and popularity
- Brennon — meaning, origin and popularity
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Frequently asked about Brennan
What does the name Brennan mean?
Brennan means "Descendant of the sorrowful one" and is of Irish origin.
What is the origin of Brennan?
Brennan originates in Irish naming tradition. Names of Irish origin often share recognizable sounds and cultural roots that shape how the name reads today.
How do you pronounce Brennan?
Brennan has 7 letters and is most commonly stressed on the first syllable. Tap the pronunciation player on this page to hear it spoken aloud.
Is Brennan a boy's or girl's name?
Brennan is primarily used as a boy's name in US records, though usage can vary by region and era.
How popular is Brennan in 2026?
In our 2026 popularity tracker, Brennan sits in the Rare tier — an uncommon, standout choice.
What names are similar to Brennan?
Names that share Brennan's sound and style include Brendan, Brennen, Brandan, Brannon, Brennon. Open the "Names like Brennan" rail on this page for the full list.