Sebastian Boy
How popular is Sebastian?
#16 boy name in 2025
8,605 baby boys were named Sebastian in the US in 2025, making it the 16th most popular boy name. Another 10 girls got the name (#9,454 for girls).
Sebastian popularity over time
Boys Girls
| Rank in 2025 | #16 for boys (▼ 2 from 2024) |
|---|---|
| Babies in 2025 | 8,605 boys, 10 girls |
| 10-year trend | Steady (-11% babies vs 2015) |
| Earlier ranks | #35 in 2015, #19 in 2020 |
| Peak year | 2016 (10,309 boys) |
| Highest rank | #13 in 2022 (2 years at that rank) |
| First recorded | 1881 |
| Boys vs girls (last 10 years) | 100% boys, 0% girls |
| Chance a classmate shares it | 6% in a class of 25 kids born in 2025 |
Sebastian counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Sebastian family of names ranked #19 for boys in 2025 (#20 the year before), with 8,679 babies in all.
| Spelling | Boys in 2025 | Share |
|---|---|---|
| Sebastian | 8,605 | 99% |
| Sebastien | 55 | 1% |
| Sebastion | 19 | 0% |
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Where Sebastian is most popular
Babies named Sebastian per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
- Nevada: 11.0 per 1,000 (626 boys)
- California: 10.8 per 1,000 (9,914 boys)
- New Mexico: 9.8 per 1,000 (324 boys)
- Arizona: 9.0 per 1,000 (1,478 boys)
- Texas: 8.8 per 1,000 (7,752 boys)
Sebastian by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1880s | 34 | #611 |
| 1890s | 43 | #640 |
| 1900s | 89 | #685 |
| 1910s | 838 | #491 |
| 1920s | 1,231 | #519 |
| 1930s | 774 | #564 |
| 1940s | 574 | #732 |
| 1950s | 500 | #955 |
| 1960s | 1,113 | #629 |
| 1970s | 1,413 | #607 |
| 1980s | 2,839 | #408 |
| 1990s | 14,599 | #152 |
| 2000s | 53,866 | #70 |
| 2010s | 86,688 | #18 |
| 2020s | 53,454 | #13 |
Boy names about as popular as Sebastian
Questions
- Is Sebastian a boy or girl name?
- Sebastian is mostly a boy name. Over the last 10 years, 100% of babies named Sebastian were boys.
- How popular is the name Sebastian?
- 8,605 baby boys were named Sebastian in the US in 2025, making it the 16th most popular boy name. Another 10 girls got the name (#9,454 for girls).
- When was Sebastian most popular?
- Sebastian peaked in 2016, when 10,309 boys were given the name. Its highest rank was #13, held for 2 years starting in 2022.
- How many people are named Sebastian?
- 218,463 babies have been named Sebastian in the US since 1880. We estimate about 212,680 of them are alive in 2026, with a median age of 12.
- Where is Sebastian most popular?
- From 2021 to 2025, Sebastian was most common in Nevada, at 11.0 of every 1,000 boys born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.