Sèbastien
given name · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
Sèbastien is a male 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. Sèbastien is also written Ян in Cyrillic, יונה in Hebrew and ዮሐንስ in Ethiopic.
- FRFrance≈1 in 330(inferred from the name graph)
- CZCzechia1 in 18as Jan
- MDMoldova1 in 34as Ion
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 Sèbastien itself, the figure is that spelling’s, and it is named. Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.
- United States (measured from records)
- #6 (measured from records)
- 10 (measured from records)
- Record sources
- 731 (measured from records)
- ≈1 in 329 (inferred from the name graph)
3,125,123 named John, 2020
of 15M given names, spellings grouped
recorded for this name
corpus datasets behind its best-documented spelling
strongest: highest-authority source
France, est.
measured from records inferred from the name graph
Sèbastien in other scripts: Latin, Cyrillic, Hebrew and 7 more
(measured from records)Locally spelled John in US United States, GB United Kingdom, PH Philippines and 2 more, Sebastien in FR France, Jan in CZ Czechia and Ioan in RO Romania.
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.
Cited for this meaning 1
Attested across 26 languages in the etymology graph.
Where in the world
(measured from records)Sèbastien 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 |
| GB United Kingdom | #1 | ≈1,200,000 est. | ≈1 in 59 | 1.1K | John | 496 |
| NG Nigeria | #11 | ≈1,200,000 est. | ≈1 in 200 | — | John | 190 |
| PH Philippines | #3 | ≈1,100,000 est. | ≈1 in 107 | 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 | ≈210,000 est. | ≈1 in 329 | 304K | Sebastien | 429 |
| IE Ireland | #1 | ≈100,000 est. | ≈1 in 53 | — | John | 245 |
| MD Moldova | — | 100,110as Ion | 1 in 34 | 100K | Ион | 50 |
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).
Evidence
(measured from records)No register attests this spelling yet
Frequently asked questions
- Is Sèbastien a male or female name?
- Sèbastien 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.
- Which countries have the most people named Sèbastien?
- In the United States, the national register counted about 3.1 million people named John, more than in any other country we hold. After it come United Kingdom, Nigeria, Philippines and Czechia; the country table on this page ranks them.
- How common is the name Sèbastien?
- In the United States, the national register counted 3,125,123 people named John in 2020, about 1 in 106 residents.
- How common is Sèbastien compared with other names?
- In the United States, Sèbastien is the 3rd most common given name of 2,815,431 given names recorded there.
What do you want to know about Sèbastien?
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/s%C3%A8bastienThe 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, “Sèbastien” — ranked 2nd in the United States (Census Bureau, 2020). Data snapshot 2026-10-13.