Sebastan
given name · Latin script
Meaning: Var. de Sebastianus, du grec Sebastianos «originaire de Sébaste»; saint Sébastien, fêté le 20 janvier
Recorded as a male name· opposite-gender records fall within measured source noise
/sebastan/(machine-generated) pronunciation, model-generated
Sebastan is a given name written in the Latin script, with more bearers in the United States than in any other country.
- CLChile≈1 in 1M(inferred from the name graph)
- PLPoland≈1 in 1.3M
- COColombia≈1 in 1.3M
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.
- United States (measured from records)
- Sources
- 18 (measured from records)
- ≈1 in 1.0M (inferred from the name graph)
157 people, 2020
Highest-authority source
Chile, est.
measured from records inferred from the name graph
Spellings & scripts(measured from records)
One other spelling is counted as the same name:
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(measured from records)
Var. de Sebastianus, du grec Sebastianos «originaire de Sébaste»; saint Sébastien, fêté le 20 janvier.
Sources 1
- Dictionnaire généalogique des prénoms
Where in the world(measured from records)
Sebastan 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.
157 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; IBGE — names by decade (Kaggle mirror); the pl-dane-pesel 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).
How to address them(machine-generated)
A formal English salutation is built on the surname, so it needs a full name — on its own, a first name only supports the informal form.
Evidence(measured from records)
Attested in 6 sources across 5 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 155 | #44,236 |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 2022 | 20 | — |
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 2 | #44,236 |
| PL Poland | dane.gov.pl — PESEL given names (first + second name position, 2026-01-20) | 2026 | — | — |
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- How do you pronounce Sebastan?
- A machine transcription gives /sebastan/ (IPA) for Spanish.
- Is Sebastan a male or female name?
- Sebastan 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.
- What does the name Sebastan mean?
- Recorded meaning: Var. de Sebastianus, du grec Sebastianos «originaire de Sébaste»; saint Sébastien, fêté le 20 janvier.
- In which country does Sebastan have the most bearers?
- In the United States, the national register counted about 157 people named Sebastan, more than in any other country we hold, where it is most often spelled sebastan.
- How common is the name Sebastan?
- In the United States, the national register counted 157 people named Sebastan in 2020, about 1 in 2.1 million residents.
What do you want to know about Sebastan?
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/sebastanThe 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, “Sebastan”. Data snapshot 2026-10-10.