Sebastiań

given name · Latin script

Sebastiań 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. Recorded meaning: From Latin Sebastianus. Recorded as a given name in Norway since the 17th century.

rarermore common
  • CLChile≈1 in 270(inferred from the name graph)
  • ESSpain1 in 1.1K
  • CZCzechia1 in 18as Jan

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 Sebastiań 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)

3,125,123 named John, 2020

#6 (measured from records)

of 15M given names

10 (measured from records)

recorded for this name

Sources
731 (measured from records)

Highest-authority source

≈1 in 270 (inferred from the name graph)

Chile, est.

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

JohnLatin(measured from records)
ЯнCyrillic(measured from records)
יונהHebrew(measured from records)
ዮሐንስEthiopic(measured from records)
요안Hangul(measured from records)
ΙωαννGreek(measured from records)
เซบาสเตียนThai(measured from records)
ჯონიGeorgian(measured from records)
ՅանArmenian(measured from records)
JoࣩhnArabic(measured from records)

5 other spellings are counted as the same name:

Locally spelled John in US United States, GB United Kingdom, PH Philippines and 2 more, Sebastian in CL Chile, ES Spain, 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(measured from records)

From Latin Sebastianus. Recorded as a given name in Norway since the 17th century.

Sources 9

  • A concise dictionary of first names
  • A dictionary of surnames
  • The Oxford Dictionary of Family Names in Britain and Ireland
  • The Oxford Names Companion - The definitive guide to Surnames, First Names, and Place Names of the British Isles
  • Wiktionary

Attested across 32 languages in the etymology graph.

Where in the world(measured from records)

Sebastiań 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.

Where Sebastiań is recorded, by country
CountryMost common spellingSources
US United States#33,125,123as John1 in 1063.1MJohn731
NG Nigeria#11≈1,200,000 est.≈1 in 177—John190
GB United Kingdom#1≈1,100,000 est.≈1 in 591.1KJohn496
PH Philippines#3≈750,000 est.≈1 in 145listedJohn261
CZ Czechia#1587,876as Jan1 in 18588KJan233
RO Romania#151447,697as Ioan1 in 48448KIoan96
MD Moldova#332100,110as Ion1 in 34100KИон50
IE Ireland#1≈98,000 est.≈1 in 53—John245
CL Chile#37≈67,000 est.≈1 in 270770Sebastian187
ES Spain#10344,1581 in 1.1K44KSebastian219

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; SRCEI — Nombres más comunes (guaguas, 1920–2021); INE — Padrón per-token widgets (current living counts, given + apellidos); 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

None of the official registers or reference works in our corpus lists Sebastiań under this spelling. The statistics on this page rest on person records, and the related names are inferred from the name graph.

Frequently asked questions

What does the name Sebastiań mean, and where does it come from?
From Latin Sebastianus. Recorded as a given name in Norway since the 17th century. Recorded by A concise dictionary of first names and A dictionary of surnames and 7 other sources.
Is Sebastiań a male or female name?
Sebastiań 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 Sebastiań 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 Sebastiań?
In Spain, the national register counted 44,158 people named Sebastiań, about 1 in 1.1 thousand residents.
How common is Sebastiań compared with other names?
In the United States, Sebastiań is the 3rd most common given name of 2,815,431 given names recorded there.

What do you want to know about Sebastiań?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/sebastia%C5%84

The 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, “Sebastiań” — the 3rd most common given name in United States. Data snapshot 2026-10-10.

See how Sebastiań parses inside a full name →