Rząsa
surname · Latin script
(measured from records)Officially recorded in 1 country · latest register: dane.gov.pl, 2026
Rząsa is a surname written in the Latin script, with more bearers in Poland than in any other country.
- PLPoland1 in 17K(measured from records)
- GBUnited Kingdom≈1 in 601K
- USUnited States1 in 842K
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.
- Poland (measured from records)
- Record sources
- 38 (measured from records)
- 1 in 17K (inferred from the name graph)
2,275 people, 2026
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Poland
measured from records inferred from the name graph
Spellings & scripts
(measured from records)One other spelling is counted as the same name:
Locally spelled Rzasa in PL Poland, 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.
Attested across 11 languages in the etymology graph.
Where in the world
(measured from records)Rząsa 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 | |||
|---|---|---|---|---|---|
| PL Poland | 2,275 | 1 in 17K | 1.1K | Rzasa | 38 |
| US United States | 395 | 1 in 842K | 407 | Rzasa | 37 |
| GB United Kingdom | ≈110 est. | ≈1 in 601K | 5 | Rzasa | 21 |
| FR France | ≈78 est. | ≈1 in 870K | 10 | — | 1 |
| NL Netherlands | ≈15 est. | ≈1 in 1.2M | — | Rzasa | 4 |
| NO Norway | 5 | 1 in 1.1M | 5 | — | — |
2,275 people counted by dane.gov.pl — PESEL living persons (surnames), 2026, counting the spelling rząsa. 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: dane.gov.pl — PESEL living persons (surnames); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2000; Surnames of England and Wales (taliesin-arlein.net, Sept 2002 electoral register); INSEE — Fichier des noms de famille (1891–2000); 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).
Notable people with this name
(measured from records)- Antoni Rząsab. 1919PLPolish sculptor (1919-1980)
- Marek Rząsab. 1957PLPolish politician and deputy
- Marcin Rząsab. 1965PLPolish sculptor
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)4 registers and reference works attest this spelling, across 1 country.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| PL Poland | dane.gov.pl — PESEL living persons (surnames) | 2026 | 1.1K | — |
| PL Poland | dane.gov.pl — PESEL living persons (names) | — | 1.1K | #2,672 |
| PL Poland | dane.gov.pl — PESEL living persons (surnames) | 2026 | 1.1K | — |
| PL Poland | dane.gov.pl — PESEL living persons (names) | — | 1.1K | #2,628 |
Reference works 2
- 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
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 Rząsa have the most bearers?
- In Poland, the national register counted about 2.3 thousand people named Rząsa, more than in any other country we hold, where it is most often spelled rzasa.
- Where is Rząsa most common?
- Rząsa is densest in Poland, where the national register counts about 1 in 17 thousand people carrying it.
- How common is the name Rząsa?
- In Poland, the national register counted 2,275 people named Rząsa in 2026, about 1 in 17 thousand residents.
What do you want to know about Rząsa?
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/rz%C4%85saThe 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, “Rząsa”. Data snapshot 2026-10-13.