How Many People Are Named Sebastain?
people named Sebastain are alive in the United States today (estimate)
About 1 in 696,099 people in the US has this name
Based on 510 babies named Sebastain in Social Security records from 1918 to 2025, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
24 births
Trend
Stable (last 10 years)
⚧ Gender Distribution
All of the babies given the name Sebastain in the records were boys.
👥 Age Distribution
The average person named Sebastain alive today is about 21 years old, and 77% are under 30. Half of them were between 11 and 28 in 2025.
📈 Popularity Over Time
Sebastain first appears in the records in 1918 and was given most often in 2002, to 24 babies. In 2025, 9 babies got the name.
Babies given the name each year, 1918 to 2025
🏆 Rank History
Sebastain has never been one of the 100 most popular boys' names. Its best rank was #3,010, in 1962. In 2025 it ranked #8,787.
| Boys | |
|---|---|
| Rank in 2025 | #8,787 |
| Best rank | #3,010 (1962) |
| Years in the top 100 | None |
| Rank in its biggest decade | #4,797 in the 2000s |
📍 State-Wise Distribution
People named Sebastain alive today, by the state where they were born (estimate; state records start in 1910).
More people named Sebastain were born in California than in any other state: about 5 of those alive today.
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