Kalfus
surname · Latin script
Recorded for both men and women· direction only, no split published
/kəɫfəs/(machine-generated) pronunciation, model-generated
Kalfus is a surname written in the Latin script, with more bearers in the United States than in any other country. Recorded meaning: Probably an Americanized spelling of German Kalbfuss.
- USUnited States1 in 1.5M(measured from records)
- CZCzechia1 in 132K
- CHSwitzerland1 in 934K
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Where a country counts another spelling of the name rather than Kalfus itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.
- United States (measured from records)
- 2 (measured from records)
- Sources
- 128 (measured from records)
- 1 in 132K (inferred from the name graph)
220 people, 2010
recorded for this name
Highest-authority source
Czechia
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Locally spelled קלפוס in IL Israel.
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(measured from records)
Probably an Americanized spelling of German Kalbfuss.
Sources 1
Attested in 1 language in the etymology graph.
Where in the world(measured from records)
Kalfus 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 | |||
|---|---|---|---|---|---|
| US United States | 220 | 1 in 1.5M | 220 | Kalfus | 128 |
| IL Israel | 125as קלפוס | 1 in 69K | 125 | קלפוס | 15 |
| CZ Czechia | 81 | 1 in 132K | 81 | — | — |
| GB United Kingdom | ≈42 est. | ≈1 in 1.6M | — | Kalfus | 12 |
| CA Canada | ≈20 est. | ≈1 in 1.9M | — | Kalfus | 9 |
| NL Netherlands | ≈12 est. | ≈1 in 1.5M | — | Kalfus | 3 |
| CH Switzerland | 9 | 1 in 934K | 9 | — | 2 |
220 people counted by Census Bureau — Surname Frequency 2010, 2010. 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; CBS Israel — Family names in Israel, 2017 ("שמות משפחה בישראל 2017"); MVČR — living population register 2017; BFS — Familiennamen der Wohnbevölkerung (surnames). 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)
- Josef Kalfusb. 1880CZCzechoslovak minister of finance and Czechoslovak politician (1880–1955)
- Josef Kalfusb. 1908CZteacher and sculptor
- Radim Kalfusb. 1920CZCzechoslovak writer
- Maurycy Kalfusb. 1921PLPolish chemist
- Ken Kalfusb. 1954USAmerican journalist
- Jan Kalfusb. 1956CZCzech organist
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)
Attested in 13 sources across 5 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 220 | #85,049 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 220 | #80,216 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 216 | #91,558 |
| CZ Czechia | MVČR — living population register 2017 | — | 81 | #20,016 |
| CZ Czechia | KdeJsme.cz — četnost jmen a příjmení (MVČR population register front-end) | — | 81 | #8,545 |
| CH Switzerland | BFS — Familiennamen der Wohnbevölkerung (surnames) | 2024 | 9 | #65,843 |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 3
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- 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
- What does the name Kalfus mean, and where does it come from?
- Probably an Americanized spelling of German Kalbfuss. Recorded by Wiktionary.
- How do you pronounce Kalfus?
- A machine transcription gives /kəɫfəs/ (IPA) for English.
- In which country does Kalfus have the most bearers?
- In the United States, the national register counted about 220 people named Kalfus, more than in any other country we hold, where it is most often spelled kalfus.
- Where is Kalfus most common?
- Measured as a share of residents rather than as a count, Kalfus is densest in Czechia — about 1 in 132 thousand people — even though United States holds more of our records for it.
- How common is the name Kalfus?
- In the United States, the national register counted 220 people named Kalfus in 2010, about 1 in 1.5 million residents.
What do you want to know about Kalfus?
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/kalfusThe 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, “Kalfus”. Data snapshot 2026-10-10.