Sjaak
given name · Latin script
Meaning: a male given name, variant of Jakob
Recorded as a male name· opposite-gender records fall within measured source noise
Sjaak is a given name written in the Latin script, with more bearers in the Netherlands than in any other country.
- NLNetherlands1 in 19K(measured from records)
- BEBelgium≈1 in 461K
- NZNew Zealand≈1 in 870K
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
- 93 (measured from records)
- 1 in 19K (inferred from the name graph)
922 people
Highest-authority source
Netherlands
measured from records inferred from the name graph
Meaning & origin(measured from records)
a male given name, variant of Jakob
Sources 1
- kaikki.org Wiktionary extract (IPA + transliterations)
Attested across 22 languages in the etymology graph.
Where in the world(measured from records)
Sjaak 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 | #430 | 922 | 1 in 19K | 912 | Sjaak | 93 |
| DE Germany | — | ≈33 est. | ≈1 in 2.4M | — | Sjaak | 22 |
| BE Belgium | — | ≈25 est. | ≈1 in 461K | — | Sjaak | 13 |
| US United States | — | ≈18 est. | ≈1 in 19M | — | Sjaak | 25 |
| ZA South Africa | — | ≈16 est. | ≈1 in 3.5M | — | Sjaak | 3 |
| NZ New Zealand | — | ≈6 est. | ≈1 in 870K | — | Sjaak | 5 |
| SE Sweden | — | 5 | 1 in 2M | 5 | — | 2 |
| DK Denmark | — | 3 | 1 in 2M | 3 | — | 2 |
922 people counted by Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018). 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); Skatteverket — Sök hur många som har ett visst namn (living population); Danmarks Statistik — Hvor mange hedder...? (living-population name counts). 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)
- Sjaak de Koningb. 1885NLDutch speed skater (1885–1962)
- Sjaak Albertsb. 1926NLDutch association football player (1926-1997)
- Sjaak Swartb. 1938NLDutch footballer
- Sjaak van der Takb. 1956NLDutch politician
- Sjaak Pietersb. 1957NLDutch track cyclist and artist
- Sjaak Troostb. 1959NLDutch football player/director
- Sjaak Stormb. 1961NLDutch football player
- Sjaak Bralb. 1964NLDutch writer and cabaret artist
- Sjaak Polakb. 1976NLDutch footballer/coach
- Sjaak Lettingab. 1982NLDutch footballer
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).
Evidence(measured from records)
Attested in 8 sources across 3 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| NL Netherlands | Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018) | — | 912 | #1,109 |
| NL Netherlands | Meertens NVB — Nederlandse Voornamenbank (live per-name BRP counts, 1790-2017) | — | 562 | #2,966 |
| NL Netherlands | Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018) | — | 10 | #22,406 |
| SE Sweden | Skatteverket — Sök hur många som har ett visst namn (living population) | — | 5 | #45,576 |
| DK Denmark | Danmarks Statistik — Hvor mange hedder...? (living-population name counts) | — | 3 | #13,976 |
Reference works 3
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- 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 Sjaak mean, and where does it come from?
- a male given name, variant of Jakob Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
- Is Sjaak a male or female name?
- Sjaak 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 are other forms of the name Sjaak?
- In the etymology graph, James, Jaime and Jamie are forms of the same name in other languages; Sjakie is a recorded short or pet form.
- In which country does Sjaak have the most bearers?
- In the Netherlands, the national register counted about 922 people named Sjaak, more than in any other country we hold, where it is most often spelled sjaak.
- Where is Sjaak most common?
- Sjaak is densest in the Netherlands, where the national register counts about 1 in 19 thousand people carrying it.
- How common is the name Sjaak?
- In the Netherlands, the national register counted 922 people named Sjaak, about 1 in 19 thousand residents.
- How common is Sjaak compared with other names?
- In the Netherlands, Sjaak is the 430th most common given name of 101,916 given names recorded there.
What do you want to know about Sjaak?
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/sjaakThe 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, “Sjaak” — the 430th most common given name in Netherlands. Data snapshot 2026-10-10.