Sebastien
Sebastien was given to 55 boys in 2025, #2,473 among boys’ names; 4,057 Americans have been recorded with it since 1971 (Social Security Administration, published May 2026).
An estimated 3,980 Americans named Sebastien and born in the U.S. are alive in 2026 (98% of everyone recorded); the median is 18 years old and half are between 11 and 25.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Sebastien by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Sebastien?
#2,473 among boys’ names, 2025
Sebastien fell from #1,357 in 2015 to #2,473 in 2025 among boys’ names; its share of boys born fell from 67.3 to 32.2 per million.
178 babies in 2007, the peak
Sebastien peaked in 2007, when 178 boys were given it, #1,058 among boys’ names. The 55 births of 2025 are 31% of that peak.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2025 | 55 | #2,473 | 32.2 |
| 2024 | 88 | #1,850 | 51.1 |
| 2023 | 97 | #1,725 | 56.7 |
| 2022 | 108 | #1,622 | 61.9 |
| 2021 | 93 | #1,746 | 53.2 |
| 2020 | 59 | #2,316 | 34.2 |
| 2019 | 87 | #1,784 | 48.5 |
| 2018 | 107 | #1,575 | 58.9 |
| 2017 | 103 | #1,578 | 55.6 |
| 2016 | 118 | #1,463 | 62.2 |
Every recorded year (54)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2015 | 129 | #1,357 | 67.3 |
| 2014 | 134 | #1,316 | 69.8 |
| 2013 | 155 | #1,166 | 81.9 |
| 2012 | 116 | #1,437 | 61.2 |
| 2011 | 138 | #1,256 | 72.7 |
| 2010 | 133 | #1,296 | 69.3 |
| 2009 | 142 | #1,254 | 71.6 |
| 2008 | 174 | #1,080 | 85.3 |
| 2007 | 178 | #1,058 | 85.8 |
| 2006 | 171 | #1,052 | 83.2 |
| 2005 | 156 | #1,066 | 78.1 |
| 2004 | 154 | #1,051 | 77.6 |
| 2003 | 150 | #1,043 | 75.9 |
| 2002 | 142 | #1,070 | 73.1 |
| 2001 | 145 | #1,022 | 74.6 |
| 2000 | 114 | #1,192 | 58.0 |
| 1999 | 97 | #1,273 | 50.5 |
| 1998 | 65 | #1,614 | 34.0 |
| 1997 | 74 | #1,461 | 39.3 |
| 1996 | 64 | #1,565 | 33.8 |
| 1995 | 56 | #1,638 | 29.4 |
| 1994 | 56 | #1,635 | 29.0 |
| 1993 | 41 | #1,992 | 20.9 |
| 1992 | 40 | #1,993 | 20.0 |
| 1991 | 38 | #2,004 | 18.8 |
| 1990 | 46 | #1,747 | 22.4 |
| 1989 | 24 | #2,671 | 12.0 |
| 1988 | 26 | #2,345 | 13.6 |
| 1987 | 15 | #3,308 | 8.0 |
| 1986 | 13 | #3,618 | 7.1 |
| 1985 | 13 | #3,565 | 7.0 |
| 1984 | 25 | #2,149 | 13.9 |
| 1983 | 12 | #3,588 | 6.7 |
| 1982 | 22 | #2,327 | 12.1 |
| 1981 | 8 | #4,886 | 4.5 |
| 1980 | 11 | #3,805 | 6.2 |
| 1979 | 8 | #4,779 | 4.6 |
| 1978 | 8 | #4,491 | 4.9 |
| 1977 | 5 | #6,695 | 3.0 |
| 1976 | 8 | #4,352 | 5.1 |
| 1975 | 9 | #3,893 | 5.8 |
| 1973 | 8 | #3,993 | 5.1 |
| 1972 | 8 | #3,909 | 4.9 |
| 1971 | 11 | #3,112 | 6.2 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Sebastien a boy’s or a girl’s name?
Sebastien has been recorded only for boys: SSA lists no girls with the name in 54 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Sebastien: the SSA national file counts each sex separately.
How many people are named Sebastien, and how old are they?
3,980 alive in 2026, estimated
That is 98% of the 4,057 Americans ever recorded as Sebastien. The median Sebastien alive today is 18 years old; half are between 11 and 25.
The 2020 Census counted 4,555 people named Sebastien (12 women and girls, 4,543 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 3,522 born in the U.S. The Census count is 29% above that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Generation X | 1965-1980 | 69 |
| Millennials | 1981-1996 | 477 |
| Generation Z | 1997-2012 | 2,120 |
| Generation Alpha | 2013-2025 | 1,320 |
An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Where are babies named Sebastien born?
The states with the most babies named Sebastien are California, Florida and Washington, with 100% of its births recorded by state in 2025; Washington is not among the ten states with the most births.
| State | Births 2025 | Rank, boys | vs. national |
|---|---|---|---|
| California | 7 | #2,176 | 1.1× |
| Florida | 5 | #2,052 | 2.3× |
| Washington | 5 | #1,133 | 0.6× |
Where Sebastien is more common than its national share predicts
Relative to its national share, Sebastien is most over-represented in Florida: since 1971 it was given 2.3 times as often there as its national share each year would predict.
States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among boys’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Sebastien with the births its national share predicts year by year, for states with at least 100 births of the name.
Names spelled alike
Of these 6 names spelled alike, given to 224,163 babies since 1880, Sebastien is the second most given (1.8% of them). In 2025 it was given to 55 of their 8,698 babies (<1%), again the second most given.
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Sebastien
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Sebastien and names like it
- Compare Sebastien and SebastianBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2000sSebastien peaked in 2007.
- California’s most given namesThe state where SSA recorded the most babies named Sebastien since 1910.
- The top names of 2007The year the most babies were named Sebastien.
- The names of Generation ZMost people named Sebastien alive today were born 1997-2012.
- Names starting with SMost given first.