Will my child share the name Brennan with classmates?

Unlikely. With around 7 UK babies named Brennan per year, your child will almost certainly be the only Brennan in his class, and possibly the only one in the whole school.

Is Brennan becoming more or less popular in the UK?

Brennan has been declining in UK popularity, dropping 518 places in the last five years. Its peak was #543 in 2000. Choosing it now means he is likely to be among the last of his generation with this name.

Is Brennan popular in the US as well as the UK?

Brennan is more popular in the US (#990) than in the UK (#2922). Names with strong rankings in both countries tend to have broad cross-cultural appeal, working well for international families or those with ties to both nations.

Is Brennan a popular baby name in the United States?

Brennan does not appear in the US top 1,000 baby names, making it a distinctively British choice.

NameInClass Baby name predictor

👦 Boy's name 💎 Relatively Unique UK #2922

Brennan

Brennan is a distinctive choice, ranked #2922 in 2024. Your child is likely to be the only Brennan in their class.

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UK Rank 2024

#2922

US Rank #990

About the Name Brennan

Brennan has seen a notable decline in recent years, dropping 518 places in five years. It was most popular in 2000 at #543 — parents choosing it today are making a deliberately counter-trend decision. The name has been a consistent presence in UK records since 1996.

Brennan is distinctive enough that your child will likely be the only one in both their class and their school — standing out on every register.

In the US it ranks even higher at #990, where it enjoys a particularly strong following.