How Common is the First Name Sebastian?
We estimate that there are 212,649 people named Sebastian who are currently alive and were born in the United States. Sebastian is the 125th most common for men, and the 258th most common overall.
How Old are People Named Sebastian?
The average person named Sebastian is 13.08 years old.
Is Sebastian a Popular Baby Name Right Now?
8,615 people named Sebastian were born in the U.S. in 2025. It was the 16th most popular name for boys, and the 25th most popular overall.
The popularity of Sebastian peaked between 2022–2023, when it was the 13th most popular name for baby boys.
Is Sebastian a Boy's Name or a Girl's Name?
Sebastian is almost exclusively a male name. 99.8% of people named Sebastian are male.
Facts About the Name Sebastian
Popularity of Sebastian in England
In 2020, Sebastian was the 39th most popular name for boys in England and Wales.