Sebastiaan
given name · Latin script
A male name· listed as male by the registers that count names by sex
(measured from records)Officially recorded in 21 countries · latest register: SSA, 2016
/zəbɑstiaːn/(machine-generated) pronunciation, model-generated
Sebastiaan 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. Recorded meaning: From Latin Sebastianus.
- NLNetherlands1 in 508(measured from records)
- 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 Sebastiaan 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)
- 10 (measured from records)
- Record sources
- 731 (measured from records)
- 1 in 508 (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
Netherlands
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, NL Netherlands, 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
(measured from records)From Latin Sebastianus.
Cited for this meaning 1
Attested across 12 languages in the etymology graph.
Where in the world
(measured from records)Sebastiaan 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 |
| MD Moldova | — | 100,110as Ion | 1 in 34 | 100K | Ион | 50 |
| IE Ireland | #1 | ≈98,000 est. | ≈1 in 53 | — | John | 245 |
| NL Netherlands | #1 | 34,002 | 1 in 508 | 34K | Jan | 236 |
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); MVČR — living population register 2017; DEPABD — name-day population snapshot; Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); 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)- Sebastiaan Trompb. 1889NLDutch theologian (1889-1975)
- Bas Ruttenb. 1965NLnot in their usual nameDutch-American mixed martial arts (MMA) fighter, professional wrestler and kickboxer
- Sebastiaan Bremerb. 1970NLDutch artist (born 1970)
- Sebastiaan Bleekemolenb. 1978NLDutch racing driver
- Sebastiaan Stötelerb. 1983NLDutch politician (born 1983)
- Sebastiaan Verschurenb. 1988NLDutch swimmer
- Sebastiaan Braatb. 1992NLcricketer
- Vincent Janssenb. 1994NLnot in their usual nameDutch association football player (born 1994)
- Sebastiaan Bornauwb. 1999BEBelgian association football player
- Sebastiaan Westerweelb. 1999Son of Bas Westerweel
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).
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)31 registers and reference works attest this spelling, across 21 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| NL Netherlands | Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018) | — | 34K | #67 |
| NL Netherlands | Meertens NVB — Nederlandse Voornamenbank (live per-name BRP counts, 1790-2017) | — | 15K | #256 |
| NL Netherlands | SVB Kindernamen — annual newborn name frequency (Wayback-recovered) | 2017 | 74 | #216 |
| NL Netherlands | Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018) | — | 71 | #6,836 |
| US United States | SSA — National Baby Names (1880–present) | 2015 | 7 | — |
| US United States | SSA — National Baby Names (1880–present) | 2008 | 7 | — |
| US United States | SSA — National Baby Names (1880–present) | 2013 | 6 | — |
| US United States | SSA — National Baby Names (1880–present) | 2010 | 6 | — |
| US United States | SSA — National Baby Names (1880–present) | 2003 | 6 | — |
| US United States | SSA — National Baby Names (1880–present) | 2016 | 5 | — |
| US United States | SSA — National Baby Names (1880–present) | 2009 | 5 | — |
| US United States | SSA — National Baby Names (1880–present) | 2000 | 5 | — |
Reference works 3
- 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
- What does the name Sebastiaan mean, and where does it come from?
- From Latin Sebastianus. Recorded by Wiktionary.
- What are other forms of the name Sebastiaan?
- In the etymology graph, Sebastian, Sébastien and Bastien are forms of the same name in other languages; Bastiaan is a recorded short or pet form.
- How do you pronounce Sebastiaan?
- A machine transcription gives /zəbɑstiaːn/ (IPA) for Dutch.
- Is Sebastiaan a male or female name?
- Sebastiaan is a male name. National registers that list it by sex list it as male: Netherlands (Meertens NVB).
- In which country does Sebastiaan 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.
- Where is Sebastiaan most common?
- Measured as a share of residents rather than as a count, Sebastiaan is densest in the Netherlands — about 1 in 508 people — even though United States holds more of our records for it.
- How common is the name Sebastiaan?
- In the Netherlands, the national register counted 34,002 people named Sebastiaan, about 1 in 508 residents.
- How common is Sebastiaan compared with other names?
- In the United States, Sebastiaan is the 3rd most common given name of 2,815,431 given names recorded there.
What do you want to know about Sebastiaan?
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/sebastiaanThe 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, “Sebastiaan” — the 3rd most common given name in United States. Data snapshot 2026-10-13.