Kasprzak
surname · Latin script
Meaning: patronymic from the personal name Kasper (see Kaspar)
(measured from records)Officially recorded in 13 countries · latest register: dane.gov.pl, 2026
/ˈkas.pʂak/(recorded in a dictionary) Polish · from Wiktionary
Kasprzak is a surname written in the Latin script, with more bearers in Poland than in any other country.
- PLPoland1 in 2.2K(measured from records)
- NONorway1 in 55K
- BEBelgium1 in 123K
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.
- Poland (measured from records)
- Record sources
- 115 (measured from records)
- 1 in 2.2K (inferred from the name graph)
17,317 people, 2026
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Poland
measured from records inferred from the name graph
Meaning & origin
(measured from records)patronymic from the personal name Kasper (see Kaspar).
Cited for this meaning 1
- Dictionary of American Family Names
Where in the world
(measured from records)Kasprzak 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 | #129 | 17,317 | 1 in 2.2K | 8.7K | Kasprzak | 115 |
| US United States | — | 1,455 | 1 in 229K | 1.5K | Kasprzak | 113 |
| FR France | — | ≈530 est. | ≈1 in 130K | 73 | Kasprzak | 3 |
| GB United Kingdom | — | ≈300 est. | ≈1 in 228K | — | Kasprzak | 49 |
| BR Brazil | — | 183 | 1 in 1.2M | 183 | — | 1 |
| NO Norway | — | 100 | 1 in 55K | 100 | — | 5 |
| BE Belgium | — | 95 | 1 in 123K | 95 | — | 4 |
| IE Ireland | — | ≈46 est. | ≈1 in 118K | — | Kasprzak | 9 |
17,317 people counted by dane.gov.pl — PESEL living persons (surnames), 2026. 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; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); SSB — Navnesøk (name-search service, living population); Familienaam.be — Belgian family-name frequency (population register); INSEE — Fichier des noms de famille (1891–2000). 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)- Marcin Kasprzakb. 1860PLPolish revolutionary (1860–1905)
- Roman Kasprzakb. 1888PLPolish engineer, Righteous Among the Nations
- Zbigniew Kasprzakb. 1908PLPolish sportsperson
- Zdzisław Kasprzakb. 1910PLPolish basketball player (born 1910)
- Andrzej Kasprzakb. 1946PLPolish basketball player (1946–2023)
- Mieczysław Kasprzakb. 1953PLPolish politician
- Grazab. 1953PLnot in their usual namePolish colorist
- Urszulab. 1960PLnot in their usual namePolish female singer of rock / pop
- Anna Kasprzakb. 1989DEDanish dressage rider
- Bartłomiej Kasprzakb. 1993PLfootballer
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)Evidence
(measured from records)25 registers and reference works attest this spelling, across 13 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| PL Poland | dane.gov.pl — PESEL living persons (surnames) | 2026 | 8.7K | — |
| PL Poland | dane.gov.pl — PESEL living persons (names) | — | 8.7K | #173 |
| PL Poland | dane.gov.pl — PESEL living persons (surnames) | 2026 | 8.7K | — |
| PL Poland | dane.gov.pl — PESEL living persons (names) | — | 8.7K | #178 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 1.5K | #18,819 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 1.4K | #18,143 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 1.4K | #19,495 |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | — | 183 | #39,509 |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1951 | 117 | — |
| NO Norway | SSB — Navnesøk (name-search service, living population) | — | 100 | #15,436 |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1931 | 100 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1961 | 98 | — |
Reference works 7
- Dictionary of American Family Names
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- Wikipedia surname tokens
- 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)
- jeantosti.com — Dictionnaire des noms de famille de France et d'ailleurs (Jean Tosti)
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 Kasprzak mean, and where does it come from?
- patronymic from the personal name Kasper (see Kaspar). Recorded by Dictionary of American Family Names.
- How do you pronounce Kasprzak?
- In Polish /ˈkas.pʂak/ (Wiktionary).
- In which country does Kasprzak have the most bearers?
- In Poland, the national register counted about 17 thousand people named Kasprzak, more than in any other country we hold, where it is most often spelled kasprzak.
- Where is Kasprzak most common?
- Kasprzak is densest in Poland, where the national register counts about 1 in 2.2 thousand people carrying it.
- How common is the name Kasprzak?
- In Poland, the national register counted 17,317 people named Kasprzak in 2026, about 1 in 2.2 thousand residents.
- How common is Kasprzak compared with other names?
- In Poland, Kasprzak is the 129th most common surname of 240,840 surnames recorded there.
What do you want to know about Kasprzak?
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/kasprzakThe 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, “Kasprzak” — the 129th most common surname in Poland. Data snapshot 2026-10-13.