Jaś
given name · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
/jaɕ/(machine-generated) pronunciation, model-generated
Jaś is a given name written in the Latin script, with more bearers in the United States than in any other country.
- SISlovenia1 in 17K(measured from records)
- USUnited States1 in 334K
- GYGuyana1 in 750K
carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.
- United States (measured from records)
- Sources
- 45 (measured from records)
- 1 in 17K (inferred from the name graph)
997 people, 2020
Highest-authority source
Slovenia
measured from records inferred from the name graph
Spellings & scripts(measured from records)
One other spelling is counted as the same name:
Locally spelled Jas in US United States.
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.
Sources 1
Attested across 19 languages in the etymology graph.
Where in the world(measured from records)
Jaś 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 | 997 | 1 in 334K | 503 | Jas | 17 |
| SI Slovenia | 121 | 1 in 17K | 121 | — | — |
| NL Netherlands | 15 | 1 in 1.2M | 264 | — | 2 |
| PL Poland | 12 | 1 in 3.2M | 436 | Jaś | 45 |
| SE Sweden | 10 | 1 in 1M | 10 | — | 3 |
| GY Guyana | 1 | 1 in 750K | 1 | — | — |
997 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; dane.gov.pl — PESEL given names (first + second name position, 2026-01-20); dane.gov.pl — PESEL living persons (surnames); Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007); SURS — resident population given names; Skatteverket — Sök hur många som har ett visst namn (living population); Guyana — Official List of Electors July 2025. 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).
How to address them(machine-generated)
Evidence(measured from records)
Attested in 7 sources across 2 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| PL Poland | dane.gov.pl — PESEL given names (first + second name position, 2026-01-20) | 2026 | 12 | #9,297 |
| PL Poland | dane.gov.pl — PESEL living persons (names) | — | 12 | #8,833 |
Reference works 3
- Wikidata name items (native-script + romanized given/family names)
- Rymut, Słownik nazwisk współcześnie w Polsce używanych (10 vols, IJP PAN, Kraków 1992–1994) — every Polish surname in the PESEL register at the end of 1990, with bearer counts nationally and per voivodeship1990
- Hoffman, Polish Surnames: Origins and Meanings (2nd ed., 2012)
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
- How do you pronounce Jaś?
- A machine transcription gives /jaɕ/ (IPA) for Polish.
- Is Jaś a male or female name?
- Jaś 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 Jaś have the most bearers?
- In the United States, the national register counted about 997 people named Jaś, more than in any other country we hold, where it is most often spelled jas.
- Where is Jaś most common?
- Measured as a share of residents rather than as a count, Jaś is densest in Slovenia — about 1 in 17 thousand people — even though United States holds more of our records for it.
- How common is the name Jaś?
- In the United States, the national register counted 997 people named Jaś in 2020, about 1 in 334 thousand residents.
What do you want to know about Jaś?
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/ja%C5%9BThe 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, “Jaś”. Data snapshot 2026-10-10.