S-J

surname · Latin script

Recorded for both men and women· direction only, no split published

S-J is a surname written in the Latin script, with more bearers in the United States than in any other country.

rarermore common
  • DKDenmark≈1 in 353K(inferred from the name graph)
  • TNTunisia≈1 in 378K
  • PTPortugal≈1 in 385K

carrying the name, as Mondonomo estimates it from our sources: no national register counts it in these countries. One hue, darker where it is more common; hover a country for its figure.

United States (inferred from the name graph)

≈230 people, est.

Sources
224 (measured from records)

Highest-authority source

≈1 in 353K (inferred from the name graph)

Denmark, est.

measured from records inferred from the name graph

Spellings & scripts(measured from records)

One other spelling is counted as the same name:

Locally spelled Sj in NL Netherlands, US United States, GB United Kingdom and 3 more.

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.

Where in the world(measured from records)

S-J 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 S-J is recorded, by country
CountryMost common spellingSources
US United States≈230 est.≈1 in 1.5M8Sj224
DE Germany≈55 est.≈1 in 1.5M—S-J33
GB United Kingdom≈49 est.≈1 in 1.3M—Sj107
TN Tunisia≈31 est.≈1 in 378K—Sj5
CA Canada≈30 est.≈1 in 1.3M1Sj61
PT Portugal≈27 est.≈1 in 385Klisted—1
NL Netherlands≈26 est.≈1 in 677K10Sj22
DK Denmark≈17 est.≈1 in 353K—Sj1

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: Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); SSA — National Baby Names (1880–present); Alberta Open Government — Frequency and Ranking of Baby Names by Year and Gender. 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).

Other names spelled this way(inferred from the name graph)

S-J is also recorded as 8 other names, grouped separately because the records behind them do not connect to the one described above.

  • Korean surname2 spellings in the group

    Most recorded in South Korea

    Also written Sj

  • French surname3 spellings in the group

    Most recorded in France

    Also written S'J, Sj

  • a separate name2 spellings in the group

    Also written Sj

  • Chinese surname2 spellings in the group

    Most recorded in China, Taiwan

    Also written Sj

  • Spanish surname7 spellings in the group

    Most recorded in Costa Rica, Brazil, Mexico, Argentina

    Languages: Spanish, Portuguese

    Also written Sj, S'J, Š'J

  • a separate name2 spellings in the group

    Also written Sj

  • Arabic surname3 spellings in the group

    Most recorded in Syria

    Also written Šj, Sj

  • Hindi name5 spellings in the group

    Most recorded in India

    Also written Sj, Šj

10 further groups record this spelling and are not listed here.

Grouping is the name graph's, not a register's: two spellings join a group when the evidence links them, so a group is a claim about the records rather than about the people.

Evidence(measured from records)

No register attests this spelling yet

None of the official registers or reference works in our corpus lists S-J 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

In which country does S-J have the most bearers?
Mondonomo estimates about 229 people named S-J in the United States, more than in any other country we hold, where it is most often spelled sj.
How common is the name S-J?
Mondonomo estimates about 230 people in the United States have S-J as their first surname, about 1 in 1.5 million residents. No national register counts it there; the figure is ours, calibrated against the registers that do.

What do you want to know about S-J?

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Query this name via API
curl https://api.mondonomo.ai/api/v1/name-graph/s-j

The same payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. Rate-limited for casual use; a free API key gives 1,000 requests a day, and bulk access is licensed separately.

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, “S-J”. Data snapshot 2026-10-10.

See how S-J parses inside a full name →