Sebastien
given name · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
Sebastien is a given name written in the Latin script, with more bearers in the United States than in any other country, where it is the 3rd most common given name.
- FRFrance≈1 in 351(inferred from the name graph)
- CZCzechia1 in 18as Jan
- RORomania1 in 48as Ioan
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Where a country counts another spelling of the name rather than Sebastien itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.
- United States (measured from records)
- #6 (measured from records)
- 9 (measured from records)
- Sources
- 731 (measured from records)
- ≈1 in 351 (inferred from the name graph)
3,125,123 named John, 2020
of 15M given names
recorded for this name
Highest-authority source
France, est.
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Locally spelled John in US United States, GB United Kingdom, PH Philippines and 2 more, Jan in CZ Czechia, Ioan in RO Romania and Ион in MD Moldova.
Spellings marked ● are how people bearing the name write it in our records, and ○ marks a model's transliteration; click a spelling to open its page.
Meaning & origin
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Sources 1
Attested across 26 languages in the etymology graph.
Where in the world(measured from records)
Sebastien counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.
Sorted by bearers: national registers' counts, and Mondonomo's estimates (≈, est.) where no register counts.
| Country | Most common spelling | Sources | ||||
|---|---|---|---|---|---|---|
| US United States | #3 | 3,125,123as John | 1 in 106 | 3.1M | John | 731 |
| NG Nigeria | #11 | ≈1,200,000 est. | ≈1 in 177 | — | John | 190 |
| GB United Kingdom | #1 | ≈1,100,000 est. | ≈1 in 59 | 1.1K | John | 496 |
| PH Philippines | #3 | ≈750,000 est. | ≈1 in 145 | listed | John | 261 |
| CZ Czechia | #1 | 587,876as Jan | 1 in 18 | 588K | Jan | 233 |
| RO Romania | #151 | 447,697as Ioan | 1 in 48 | 448K | Ioan | 96 |
| FR France | #10 | ≈190,000 est. | ≈1 in 351 | 304K | Sebastien | 429 |
| MD Moldova | #332 | 100,110as Ion | 1 in 34 | 100K | Ион | 50 |
| IE Ireland | #1 | ≈98,000 est. | ≈1 in 53 | — | John | 245 |
3,125,123 people counted by Census Bureau — First Name Frequency 2020 by sex, 2020. Exact figures are national registers' own counts, while figures marked ≈ and est. are Mondonomo’s estimates, counted from our sources and calibrated against those registers; hover one for how far to trust it in that country. A dash means neither exists.
Registers cited: Census Bureau — First Name Frequency 2020 by sex; ONS — Baby names England and Wales (2024); INSEE — Fichier des prénoms (1900–2024); MVČR — living population register 2017; DEPABD — name-day population snapshot; e-services.md — living population register. Figures without a register are Mondonomo estimates; see Methodology.
Country figures for a list of names, at full precision, are available under licence rather than by scraping this table (how that works).
Notable people with this name(measured from records)
- Sebastianb. 255FRnot in their usual nameChristian saint and martyr (256–288)
- Vaubanb. 1633FRnot in their usual nameFrench military engineer (1633–1707)
- Sébastien Grosjeanb. 1978FRFrench tennis player (born 1978)
- Nicolas Anelkab. 1979FRnot in their usual nameFrench football manager (born 1979)
- Sébastien Squillacib. 1980FRFrench footballer (born 1980)
- Sébastien Ogierb. 1983FRFrench World Rally Championship driver
- Sébastien Lecornub. 1986FRPrime Minister of France since 2025
- Sébastien Bassongb. 1986FRCameroonian and French footballer
- Sébastien Buemib. 1988CHSwiss professional racing driver
- Sébastien Hallerb. 1994FRIvorian-French footballer (born 1994)
The ten people covered by the most Wikipedia language editions — a proxy for cross-cultural notability, which favours historical and Western figures over equally prominent contemporary ones — shown by birth year. Source: Wikidata (CC0).
Evidence(measured from records)
Attested in 76 sources across 42 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 4.5K | #4,193 |
| CZ Czechia | MVČR — living population register 2017 | — | 878 | #518 |
| CZ Czechia | naše jména — 2016 MVČR snapshot | — | 439 | #580 |
| FR France | INSEE — Fichier des prénoms (1900–2024) | 2022 | 375 | #3,144 |
| US United States | SSA — National Baby Names (1880–present) | 2025 | 55 | — |
| MD Moldova | e-services.md — living population register | — | 47 | #1,380 |
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 12 | #4,193 |
| GB United Kingdom | NRS — Baby names Scotland full list (1974–present) | 2023 | 4 | #614 |
| GB United Kingdom | NISRA — Baby names Northern Ireland full list (1997–present) | 2025 | — | — |
| CZ Czechia | CZSO — 100 nejčetnějších dětských jmen (top 100 baby names 2024) | 2024 | — | #99 |
Reference works 4
- Dictionary of American Family Names
- Nişanyan Adlar (Turkish given-name national-registry frequency)
- Wikipedia given-name tokens
- Wikidata name items (native-script + romanized given/family names)
These works list the name; their figures are licensed and are not reproduced here.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- Is Sebastien a male or female name?
- Sebastien is a male name in our records. Opposite-gender entries fall within the cross-gender noise we measure in the source data, so we don't report them as usage.
- In which country does Sebastien have the most bearers?
- In the United States, the national register counted about 3.1 million people named John, more than in any other country we hold.
- How common is the name Sebastien?
- In the United States, the national register counted 3,125,123 people named John in 2020, about 1 in 106 residents.
- How common is Sebastien compared with other names?
- In the United States, Sebastien is the 3rd most common given name of 2,815,431 given names recorded there.
What do you want to know about Sebastien?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/sebastienThe payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. It takes a free API key (1,000 requests a day), which returns what this page shows everyone; the full country table, every register citation and the year-by-year series come with a licensed key, as does bulk access.
About this data
measured from records inferred from the name graph machine-generated
These figures come from the data snapshot of and will change as it is rebuilt.
Statistics are aggregated from the Mondonomo name corpus; related names and etymology are inferred from the name graph; pronunciation and any machine-marked transliterations are model-generated. Read how the numbers are made, including their known failure modes, and where the data comes from.
Reference works we consult — surname dictionaries, official name registers, Wikidata and Wiktionary — are named directly, beside the claims they support. The per-country source counts also include datasets of person records: we publish how many there are and their authority tier, but not their names.
Cite this page Mondonomo, “Sebastien” — the 3rd most common given name in United States. Data snapshot 2026-10-10.