How popular is the name Brennan?

Brennan ranks 523rd among boys' names in US records, with 45,279 births since 1916. Over the past decade it accounts for 4,412.

Is Brennan a unisex name?

No. Brennan is recorded almost entirely as a boys' name; births to the other gender are too few to register as a share.

2009, when 1,961 children were given the name. It has been in use for 109 years and is still recorded as of 2024.

Brennen, Brenan. All of these sound the same and are counted together in the totals on this page.

Boy name#523 of boy names

Pronounced B R EH1 N AE1 N (ARPABET)

Brennan is a boys' name, and first appears in 1916. It has been given to 45,279 children — the 523rd most common boys' name on record.

It is falling away, down 70% on the previous decade. Its best single year was 2009, when 1,961 children were given it.

Two other spellings are counted in that total — Brennen and Brenan — because they are pronounced identically.

2009Boys: 1,961Girls: 95

These spellings sound identical to Brennan and are counted together with it, which is why the totals here are higher than a single-spelling count.

Phonetic detail

Stress digits mark unstressed (0), primary (1) and secondary (2) syllables.

Same first letter and syllable count, peaking around the same time.

Names from the same era with a matching rhythm but a different initial.

How popular is the name Brennan?: Brennan ranks 523rd among boys' names in US records, with 45,279 births since 1916. Over the past decade it accounts for 4,412.
Is Brennan a unisex name?: No. Brennan is recorded almost entirely as a boys' name; births to the other gender are too few to register as a share.
When was Brennan most popular?: 2009, when 1,961 children were given the name. It has been in use for 109 years and is still recorded as of 2024.
How else is Brennan spelled?: Brennen, Brenan. All of these sound the same and are counted together in the totals on this page.