Kwasnik

surname · Latin script

Meaning: nickname for someone with an acerbic manner, from kwas ‘acid’ (Dictionary of American Family Names)

(measured from records)Officially recorded in 6 countries · latest register: dane.gov.pl, 2026

/kfasɲik/(machine-generated) Polish · model-generated

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Kwasnik is a surname written in the Latin script, with more bearers in Poland than in any other country: 3,423 people, counted by dane.gov.pl in 2026.

  • PLPoland1 in 11K(measured from records)
  • USUnited States1 in 605K
  • BEBelgium1 in 1.5M

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)

3,423 people, 2026

Record sources
79 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 11K (inferred from the name graph)

Poland

measured from records inferred from the name graph

Name dossier (print, CSV)Make your nomograph ✦

Spellings & scripts

(measured from records)

One other spelling is counted as the same name:

Locally spelled Kwaśnik in FR France.

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.

How to pronounce Kwasnik

  • Polish:/kfasɲik/(machine-generated) model-generated

Readings marked model-generated were transcribed by a model; the others are quoted from the dictionary named.

Meaning & origin

(measured from records)

nickname for someone with an acerbic manner, from kwas ‘acid’.

Cited for this meaning 1

  • Dictionary of American Family Names

Attested across 6 languages in the etymology graph.

Where the surname Kwasnik is found

(measured from records)

Kwasnik 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 Kwasnik is recorded, by country
CountryMost common spellingSources
PL Poland3,4231 in 11K1.7KKwasnik52
US United States5501 in 605K550Kwasnik79
FR France≈130 est.≈1 in 546K11Kwaśnik1
GB United Kingdom≈120 est.≈1 in 601K—Kwasnik23
CA Canada≈82 est.≈1 in 503K—Kwasnik7

3,423 people counted by dane.gov.pl — PESEL living persons (surnames), 2026, counting the spelling kwaśnik. 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; 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).

Other names spelled this way

(inferred from the name graph)

Kwasnik is also recorded as 6 other names, grouped separately because the records behind them do not connect to the one described above.

  • English surname5 spellings in the group

    Most recorded in United States, United Kingdom, Germany, Canada

    Languages: English, German, Dutch

    Also written Kwaśnik

  • French surname3 spellings in the group

    Most recorded in France, United States

    Also written Kwaśnik

  • Spanish surname3 spellings in the group

    Most recorded in United States, Argentina, Panama, Brazil

    Languages: Spanish, Portuguese

    Also written Kwaśnik

  • a separate name2 spellings in the group

    Also written Kwaśnik

  • Hindi surname3 spellings in the group

    Most recorded in United States

    Also written Kwaśnik

  • Italian surname2 spellings in the group

    Most recorded in United States

    Also written Kwaśnik

24 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.

Notable people with this name

(measured from records)
190019502000Oskar K. Rabinowicz, b. 1902Anna Kvasznyik, b. 1926Adam Kwasnik, b. 1983

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 Kwasnik,
InformalHello,

Evidence

(measured from records)

14 registers and reference works attest this spelling, across 6 countries.

Register rows as of the 2026-10-09 data build.

Frequently asked questions

What does the name Kwasnik mean, and where does it come from?
nickname for someone with an acerbic manner, from kwas ‘acid’. Recorded by Dictionary of American Family Names.
How do you pronounce Kwasnik?
In Polish /kfasɲik/. Transcriptions are machine-generated except where a dictionary is named.
Which countries have the most people with the surname Kwasnik?
In Poland, the national register counted about 3.4 thousand people named Kwasnik, more than in any other country we hold, where it is most often spelled kwasnik. After it come United States, France, United Kingdom and Canada; the country table on this page ranks them.
Where is Kwasnik most common?
Kwasnik is densest in Poland, where the national register counts about 1 in 11 thousand people carrying it.
How common is the name Kwasnik?
In Poland, the national register counted 3,423 people named Kwasnik in 2026, about 1 in 11 thousand residents.

What do you want to know about Kwasnik?

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

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, “Kwasnik” — ranked 1608th in Poland (dane.gov.pl, 2026). Data snapshot 2026-10-13.

See how Kwasnik parses inside a full name →