How Many People Are Named Sebastien?
An estimated 3,944 people in the United States have the first name Sebastien. It is almost exclusively a male name. The average bearer is 19 years old, and Sebastien peaked in popularity in 2007 with 178 births that year.
Below you will find a full statistical profile of Sebastien 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 Sebastien paired with any surname.
Estimated Living Americans
3,944
About 1 in 86,905 people in the U.S.
Rarity
Rare
Predicted Gender
Male
100.0% confidence
Average Age
19
years old
Peak Year
2007
178 births
Total Registered
4,001
since 1880
Gender Distribution for Sebastien
Sebastien is almost exclusively a male name. Out of 4,001 total births registered, 100.0% were male.
Sebastien as a male name
Ranked #1,842 in 2024
88 male births in 2024
Peak: 2007 (178 births)
Sebastien: Popularity Over Time
SSA records for Sebastien span from the 1970s to the 2020s, covering 6 decades of naming data. The most popular decade for this name was the 2000s, when 1,526 babies were registered. Sebastien has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Sebastien by Decade
How has Sebastien 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.
Sebastien by State
Birth registrations for Sebastien span all 21 states and territories in the SSA database. The highest counts are in California, New York, Florida. The lowest are in Oregon, Nevada, Indiana. On average, about 111 Sebastiens were registered per state.
Sebastien + Last Name Combinations
How many people share a full name with Sebastien as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Sebastien
Other first names starting with S with a similar number of bearers.
Sebastien: Questions and Answers
How many people in the U.S. are named Sebastien?
We estimate approximately 3,944 people named Sebastien 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 86,905 Americans share this first name.
Is Sebastien a common name?
Sebastien is classified as "Rare" and is more popular than 96% of all first names in the SSA database. A total of 4,001 births have been registered with this name since 1880.
When was Sebastien most popular?
Sebastien reached peak popularity in 2007, when 178 babies were given this name. The average age of a living person named Sebastien is approximately 19 years old, reflecting when the name was most commonly given.
Is Sebastien a male name?
Sebastien is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Sebastien Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Sebastien Smith, Sebastien Johnson, Sebastien 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.
Search for a full name combination
How Many of Me