Calaj

surname · Latin script

Recorded as a female name· opposite-gender records fall within measured source noise

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

rarermore common
  • CHSwitzerland1 in 2.1M(measured from records)
  • CZCzechia1 in 5.4M
  • BRBrazil1 in 6.2M

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.

Brazil (measured from records)

34 people

Sources
32 (measured from records)

Highest-authority source

1 in 2.1M (inferred from the name graph)

Switzerland

measured from records inferred from the name graph

Meaning & origin

No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.

Where in the world(measured from records)

Calaj 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 Calaj is recorded, by country
CountryMost common spellingSources
BR Brazil341 in 6.2M34——
US United States≈28 est.≈1 in 12MlistedCalaj32
DE Germany≈7 est.≈1 in 11M—Calaj7
CH Switzerland41 in 2.1M4——
CZ Czechia21 in 5.4M2——

34 people counted by IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname). 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: the us-wru-surnames-voterfile register; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); BFS — Familiennamen der Wohnbevölkerung (surnames); MVČR — living population register 2017. 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)

Calaj is also recorded as 3 other names, grouped separately because the records behind them do not connect to the one described above.

  • Albanian surname3 spellings in the group

    Most recorded in Albania, Kosovo

    Also written Çalaj, Čalaj

  • Romanian name2 spellings in the group

    Also written Călaj

  • a separate name3 spellings in the group

    Also written Čalaj, Ćalaj

12 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)

Calaj 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 Romanian, CALÁJ, calaje, s. n. 1. Imobilizare a unui organ de mașină. 2. Așezare la orizontală a suportului unui aparat topografic de vizare. 3. Mod de așezare a aripii sau a ampenajului față de fuzelajul unui avion. 4. Adîncime la care se scufundă în apă o navă. 5. Postament de grinzi de pe o cală1 (2), pe care se fixează navele în timpul construcției sau reparațiilor.

    as a wordDEX online (dexonline.ro) - DEX '96 / DEX '98 definitions with etymology

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.

Evidence(measured from records)

Attested in 3 sources across 3 countries.

Official registers attesting Calaj
CountryRegisterYearCountRank
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)—34#136,957
CZ CzechiaMVČR — living population register 2017—2#173,352
US United Stateswru Name Dictionary — US surnames, voter-file supplement (Khanna et al.)———

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

Frequently asked questions

In which country does Calaj have the most bearers?
In Brazil, the national register counted about 34 people named Calaj, more than in any other country we hold.
Where is Calaj most common?
Measured as a share of residents rather than as a count, Calaj is densest in Switzerland — about 1 in 2.1 million people — even though Brazil holds more of our records for it.
How common is the name Calaj?
In Brazil, the national register counted 34 people named Calaj, about 1 in 6.2 million residents.

What do you want to know about Calaj?

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

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, “Calaj”. Data snapshot 2026-10-10.

See how Calaj parses inside a full name →