How Many People Are Named Brenndan?
An estimated 55 people in the United States have the first name Brenndan. It is almost exclusively a male name. The average bearer is 27 years old, and Brenndan peaked in popularity in 1997 with 12 births that year.
Below you will find a full statistical profile of Brenndan as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Brenndan paired with any surname.
Key Insights
- Brenndan is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
55
About 1 in 6,231,897 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
27
years old
Peak Year
1997
12 births
Total Registered
56
since 1880
Gender Distribution for Brenndan
Brenndan is almost exclusively a male name. Out of 56 total births registered, 100.0% were male.
Brenndan as a male name
Ranked #11,589 in 2004
5 male births in 2004
Peak: 1997 (12 births)
Brenndan: Popularity Over Time
SSA records for Brenndan span from the 1990s to the 2000s, covering 2 decades of naming data. The most popular decade for this name was the 1990s, when 38 babies were registered. While Brenndan is less common than at its peak in the 1990s, it remains a well-established name with steady registrations.
Brenndan by Decade
How has Brenndan tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Brenndan + Last Name Combinations
How many people share a full name with Brenndan as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Brenndan
Other first names starting with B with a similar number of bearers.
Brenndan: Questions and Answers
How many people in the U.S. are named Brenndan?
We estimate approximately 55 people named Brenndan are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 6,231,897 Americans share this first name.
Is Brenndan a common name?
Brenndan is classified as "Very Rare" and is more popular than 55.7% of all first names in the SSA database. A total of 56 births have been registered with this name since 1880.
When was Brenndan most popular?
Brenndan reached peak popularity in 1997, when 12 babies were given this name. The average age of a living person named Brenndan is approximately 27 years old, reflecting when the name was most commonly given.
Is Brenndan a male name?
Brenndan is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Brenndan Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Brenndan Smith, Brenndan Johnson, Brenndan Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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