Kleyn

surname · Latin script

Recorded for both men and women· direction only, no split published

Kleyn is a surname written in the Latin script, with more bearers in Israel than in any other country. Recorded meaning: variant spelling of Klein.

rarermore common
  • USUnited States1 in 950K(measured from records)
  • ZASouth Africa≈1 in 21K
  • AUAustralia≈1 in 198K

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 Kleyn 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.

Israel (measured from records)

12,129 named קליין, 2017

2 (measured from records)

recorded for this name

Sources
136 (measured from records)

Highest-authority source

≈1 in 21K (inferred from the name graph)

South Africa, est.

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

KleynLatin(measured from records)
קלייןHebrew(measured from records)

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)

variant spelling of Klein.

Sources 1

  • Dictionary of American Family Names

Attested across 2 languages in the etymology graph.

Where in the world(measured from records)

Kleyn 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 Kleyn is recorded, by country
CountryMost common spellingSources
IL Israel12,129as קליין1 in 71512KKleyn1
ZA South Africa≈2,600 est.≈1 in 21K—Kleyn40
US United States3501 in 950K350Kleyn136
AU Australia≈130 est.≈1 in 198K—Kleyn47
NL Netherlands831 in 208K83Kleyn40
BE Belgium401 in 293K40Kleyn11

12,129 people counted by CBS Israel — Family names in Israel, 2017 ("שמות משפחה בישראל 2017"), 2017, counting the spelling קליין. 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: CBS Israel — Family names in Israel, 2017 ("שמות משפחה בישראל 2017"); Census Bureau — Surname Frequency 2010; CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007); Familienaam.be — Belgian family-name frequency (population register). 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)

Kleyn is also recorded as 2 other names, grouped separately because the records behind them do not connect to the one described above.

  • Spanish surname4 spellings in the group

    Most recorded in United States, Brazil, South Africa, Mexico

    Languages: Spanish, Portuguese

    Also written Klëyn, Kleyñ

  • a separate name2 spellings in the group

    Also written Ḳleyn

35 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)

1850190019502000Hendrik Gerrit Kleyn, b. 1859Jan Kleyn, b. 1925Jean Kleyn, b. 1993

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)

Attested in 19 sources across 10 countries.

Official registers attesting Kleyn
CountryRegisterYearCountRank
US United StatesCensus Bureau — Surname Frequency 20102010350#58,042
US United StatesCensus Bureau — Surname Frequency 20202020331#64,820
US United StatesCensus Bureau — Surname Frequency 20002000277#66,676
NL NetherlandsCBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007)200783#21,869
BE BelgiumFamilienaam.be — Belgian family-name frequency (population register)200840#30,575
US United Stateswru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.)———

Reference works 5

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 Kleyn mean, and where does it come from?
variant spelling of Klein. Recorded by Dictionary of American Family Names.
In which country does Kleyn have the most bearers?
In Israel, the national register counted about 12 thousand people named קליין, more than in any other country we hold.
How common is the name Kleyn?
In the United States, the national register counted 350 people named Kleyn in 2010, about 1 in 950 thousand residents.

What do you want to know about Kleyn?

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Query this name via API
curl https://api.mondonomo.ai/api/v1/name-graph/kleyn

The same payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. Rate-limited for casual use; a free API key gives 1,000 requests a day, and bulk access is licensed separately.

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, “Kleyn”. Data snapshot 2026-10-10.

See how Kleyn parses inside a full name →