Jančauskas
surname · Latin script
Jančauskas is a surname written in the Latin script, with more bearers in Lithuania than in any other country.
- LTLithuania≈1 in 16K(inferred from the name graph)
- NONorway1 in 607K
- SESweden1 in 1.1M
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.
- Lithuania (inferred from the name graph)
- Sources
- 29 (measured from records)
- ≈1 in 16K (inferred from the name graph)
≈170 people, est.
Highest-authority source
Lithuania, 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 Jancauskas in LT Lithuania, US United States, GB United Kingdom and 1 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)
Jančauskas 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 | ||||
|---|---|---|---|---|---|---|
| LT Lithuania | #757 | ≈170 est. | ≈1 in 16K | — | Jancauskas | 29 |
| BR Brazil | — | 22 | 1 in 9.6M | 22 | — | — |
| SE Sweden | — | 9 | 1 in 1.1M | 9 | — | 3 |
| NO Norway | — | 9 | 1 in 607K | 9 | Jancauskas | 2 |
| US United States | — | — | — | listed | Jancauskas | 17 |
| GB United Kingdom | — | — | — | — | Jancauskas | 12 |
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: IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); Skatteverket — Sök hur många som har ett visst namn (living population); SSB — Navnesøk (name-search service, living population). 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 1 sources across 0 countries.
Reference works 1
- Lietuvių kalbos institutas — Lietuvių pavardžių žodynas (Lithuanian surname dictionary)
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
- In which country does Jančauskas have the most bearers?
- Mondonomo estimates about 171 people named Jančauskas in Lithuania, more than in any other country we hold, where it is most often spelled jancauskas.
- How common is the name Jančauskas?
- In Brazil, the national register counted 22 people named Jančauskas, about 1 in 9.6 million residents.
- How common is Jančauskas compared with other names?
- In Lithuania, Jančauskas is the 757th most common surname of 43,479 surnames recorded there.
What do you want to know about Jančauskas?
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/jan%C4%8DauskasThe 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, “Jančauskas” — the 757th most common surname in Lithuania. Data snapshot 2026-10-10.