Brennan as a First Name

How Common is the First Name Brennan?

We estimate that there are 34,312 people named Brennan who are currently alive and were born in the United States. Brennan is the 536th most common for men, and the 1,155th most common overall.

How Old are People Named Brennan?

The average person named Brennan is 20.99 years old.

Is Brennan a Popular Baby Name Right Now?

228 people named Brennan were born in the U.S. in 2023. It was the 1,021st most popular name for boys, and the 2,023rd most popular overall.

The popularity of Brennan peaked in 2009, when it was the 242nd most popular name for baby boys.

Is Brennan a Boy's Name or a Girl's Name?

Brennan is mostly a male name, but there are some women named Brennan. 93.7% of people named Brennan are male, while 6.3% are female.

Popularity of Brennan in England

In 2020, Brennan was the in England and Wales.