Kallai

surname · Latin script

Meaning: The name Kallai is believed to be derived from a Hebrew root word meaning "frivolous" or "swift"

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

/kəlaɪ/(machine-generated) pronunciation, model-generated

Kallai is a surname written in the Latin script, with more bearers in Romania than in any other country.

rarermore common
  • RORomania≈1 in 100K(inferred from the name graph)
  • GHGhana≈1 in 237K
  • CZCzechia1 in 630K

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.

Romania (inferred from the name graph)

≈210 people, est.

Sources
86 (measured from records)

Highest-authority source

≈1 in 100K (inferred from the name graph)

Romania, est.

measured from records inferred from the name graph

Meaning & origin(measured from records)

The name Kallai is believed to be derived from a Hebrew root word meaning "frivolous" or "swift".

Sources 1

  • Biblical Names Compiled Database

Attested across 3 languages in the etymology graph.

Where in the world(measured from records)

Kallai 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 Kallai is recorded, by country
CountryMost common spellingSources
RO Romania≈210 est.≈1 in 100K—Kallai4
US United States≈160 est.≈1 in 2.1M5Kallai86
GH Ghana≈120 est.≈1 in 237K—Kallai5
BR Brazil341 in 6.2M34——
GB United Kingdom≈29 est.≈1 in 2.3M—Kallai20
CZ Czechia171 in 630K17——
BE Belgium131 in 902K13——
SG Singapore≈8 est.≈1 in 793K—Kallai2

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: SSA — National Baby Names (1880–present); IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); MVČR — living population register 2017; 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)

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

  • Hungarian surname20 spellings in the group

    Most recorded in Hungary, Ukraine, Slovakia, Romania

    Languages: Hungarian, Ukrainian, Slovak

    Also written Kállai, Каллаі, Каллай, Каллаї, Каллаи

  • Hindi surname4 spellings in the group

    Most recorded in India, United States

    Also written Kállai

  • Portuguese surname2 spellings in the group

    Most recorded in Brazil, United States

    Also written Kállai

  • French surname3 spellings in the group

    Most recorded in France

    Also written Kállai, Kallaï

  • Arabic surname3 spellings in the group

    Most recorded in Kuwait, Saudi Arabia, United Arab Emirates, Morocco

    Also written Kállai, Kallaï

  • a separate name3 spellings in the group

    Also written Kállai, Kallaï

29 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.

Other recorded senses(measured from records)

Kallai is also recorded in one other lexicon, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In Latvian, dative singular of kalla

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.

Notable people with this name(measured from records)

1850190019502000Ernő Kállai, b. 1890Gyula Kállai, b. 1910Lipót Kállai, b. 1912Ferenc Kállai, b. 1925István Kállai, b. 1929Ernő Kállai Kiss, b. 1939Gabor Kallai, b. 1959Krisztina Kállai Nagy, b. 1966Ernő Kállai, b. 1969Norbert Kállai, b. 1984

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 Kallai,
InformalHello,

Evidence(measured from records)

Attested in 16 sources across 9 countries.

Reference works 2

  • Wikipedia surname tokens
  • Wikidata name items (native-script + romanized given/family names)

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 Kallai mean, and where does it come from?
The name Kallai is believed to be derived from a Hebrew root word meaning "frivolous" or "swift". Recorded by Biblical Names Compiled Database.
How do you pronounce Kallai?
A machine transcription gives /kəlaɪ/ (IPA) for English.
In which country does Kallai have the most bearers?
Mondonomo estimates about 214 people named Kallai in Romania, more than in any other country we hold, where it is most often spelled kallai.
How common is the name Kallai?
In Brazil, the national register counted 34 people named Kallai, about 1 in 6.2 million residents.

What do you want to know about Kallai?

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

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, “Kallai”. Data snapshot 2026-10-10.

See how Kallai parses inside a full name →