Jass

surname · Latin script

Meaning: probably a shortened form of Polish Jasinski (see Jasinski) or other Polish names beginning with Jas-

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

/ˈdʒæs/(machine-generated) pronunciation, model-generated

Jass is a surname written in the Latin script, with more bearers in South Africa than in any other country.

rarermore common
  • USUnited States1 in 629K(measured from records)
  • ZASouth Africa≈1 in 84K
  • SGSingapore≈1 in 213K

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.

South Africa (inferred from the name graph)

≈670 people, est.

Sources
162 (measured from records)

Highest-authority source

≈1 in 84K (inferred from the name graph)

South Africa, est.

measured from records inferred from the name graph

Name dossier (print, CSV)

Meaning & origin(measured from records)

probably a shortened form of Polish Jasinski (see Jasinski) or other Polish names beginning with Jas-.

Sources 1

  • Dictionary of American Family Names

Where in the world(measured from records)

Jass 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 Jass is recorded, by country
CountryMost common spellingSources
ZA South Africa≈670 est.≈1 in 84K—Jass15
US United States5291 in 629K597Jass162
IT Italy≈160 est.≈1 in 385K1Jass6
MY Malaysia≈150 est.≈1 in 217K—Jass27
CA Canada≈110 est.≈1 in 356K—Jass61
SG Singapore≈29 est.≈1 in 213K—Jass25

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 — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; ISTAT — Contanomi newborn per-name series (1999–2024, JSONP backend). 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)

Jass is also recorded as 4 other names, grouped separately because the records behind them do not connect to the one described above.

  • Spanish surname19 spellings in the group

    Most recorded in United States, Mexico, Brazil, Spain

    Languages: Spanish, Portuguese

    Also written Jäss, Jàśś, Jãss, Jäšš, Jàšš

  • German surname7 spellings in the group

    Most recorded in Germany, United States, South Africa, Austria

    Also written Jaß, Jáss, Jáß, Jâss, Jâß

  • a separate name2 spellings in the group

    Also written Jašš

  • Estonian surname3 spellings in the group

    Most recorded in United States

    Also written Jãšś

46 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.

Other recorded senses(measured from records)

Jass is also recorded in 2 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In English, A trick-taking card game popular in Switzerland and neighboring areas of Germany and Austria.

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

  • In gmw-cfr, lane, alley (small street)

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.

Notable people with this name(measured from records)

18001850190019502000Jan Jass, b. 1845Mareks Jass, b. 1976Māris Jass, b. 1985Koba Jass, b. 1990

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).

How to address them(machine-generated)

FormalDear Mr Jass,
InformalHi Jass,

Evidence(measured from records)

Attested in 23 sources across 11 countries.

Official registers attesting Jass
CountryRegisterYearCountRank
US United StatesCensus Bureau — Surname Frequency 20202020597#39,705
US United StatesCensus Bureau — Surname Frequency 20102010529#41,164
US United StatesCensus Bureau — Surname Frequency 20002000522#39,617
US United Stateswru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.)———

Reference works 3

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 Jass mean, and where does it come from?
probably a shortened form of Polish Jasinski (see Jasinski) or other Polish names beginning with Jas-. Recorded by Dictionary of American Family Names.
How do you pronounce Jass?
A machine transcription gives /ˈdʒæs/ (IPA) for English.
In which country does Jass have the most bearers?
Mondonomo estimates about 674 people named Jass in South Africa, more than in any other country we hold, where it is most often spelled jass.
How common is the name Jass?
In the United States, the national register counted 529 people named Jass in 2010, about 1 in 629 thousand residents.

What do you want to know about Jass?

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

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, “Jass”. Data snapshot 2026-10-10.

See how Jass parses inside a full name →