Sjoerd-Jan
given name · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
Sjoerd-Jan is a given name written in the Latin script, with more bearers in the Netherlands than in any other country.
- NLNetherlands1 in 557K(measured from records)
- USUnited States≈1 in 328M
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.
- Netherlands (measured from records)
- Sources
- 9 (measured from records)
- 1 in 557K (inferred from the name graph)
31 people
Highest-authority source
Netherlands
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
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)
Sjoerd-Jan 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 | |||
|---|---|---|---|---|---|
| NL Netherlands | 31 | 1 in 557K | 31 | Sjoerd-Jan | 9 |
| US United States | ≈1 est. | ≈1 in 328M | — | Sjoerd-Jan | 5 |
31 people counted by Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018), counting the spelling sjoerd-jan. 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). 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)
Attested in 3 sources across 1 country.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| NL Netherlands | Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018) | — | 31 | #8,955 |
| NL Netherlands | Meertens NVB — Nederlandse Voornamenbank (live per-name BRP counts, 1790-2017) | — | 26 | #16,892 |
Reference works 1
- 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
- Is Sjoerd-Jan a male or female name?
- Sjoerd-Jan 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 Sjoerd-Jan have the most bearers?
- In the Netherlands, the national register counted about 31 people named Sjoerd-Jan, more than in any other country we hold, where it is most often spelled Sjoerd-Jan.
- Where is Sjoerd-Jan most common?
- Sjoerd-Jan is densest in the Netherlands, where the national register counts about 1 in 557 thousand people carrying it.
- How common is the name Sjoerd-Jan?
- In the Netherlands, the national register counted 31 people named Sjoerd-Jan, about 1 in 557 thousand residents.
What do you want to know about Sjoerd-Jan?
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/sjoerd-janThe 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, “Sjoerd-Jan”. Data snapshot 2026-10-10.