Casaús

surname · Latin script

Casaús is a surname written in the Latin script, with more bearers in the United States than in any other country.

rarermore common
  • ESSpain1 in 51K(measured from records)
  • USUnited States1 in 319K
  • CVCape Verde≈1 in 9.2K

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.

United States (measured from records)

1,042 people, 2010

Sources
88 (measured from records)

Highest-authority source

≈1 in 9.2K (inferred from the name graph)

Cape Verde, est.

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

2 other spellings are counted as the same name:

Locally spelled Casaus in US United States, ES Spain, CU Cuba and 3 more.

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

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

Attested across 15 languages in the etymology graph.

Where in the world(measured from records)

Casaús 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 Casaús is recorded, by country
CountryMost common spellingSources
US United States—1,0421 in 319K1KCasaus88
ES Spain—9721 in 51K972Casaus78
CU Cuba#900≈650 est.≈1 in 17K—Casaus5
GT Guatemala—≈160 est.≈1 in 109K—Casaus5
PH Philippines—≈78 est.≈1 in 1.4M—Casaus8
CV Cape Verde—≈63 est.≈1 in 9.2K—Casaus1

1,042 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; INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal). 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)

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

  • a separate name3 spellings in the group

    Also written Casáus, Casaus

  • English surname4 spellings in the group

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

    Languages: English, German

    Also written Casaus

  • Russian surname4 spellings in the group

    Most recorded in Russia

    Also written Casaus

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)

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 1 sources across 0 countries.

Reference works 1

  • 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

In which country does Casaús have the most bearers?
In the United States, the national register counted about 1.0 thousand people named Casaús, more than in any other country we hold, where it is most often spelled casaus.
How common is the name Casaús?
In the United States, the national register counted 1,042 people named Casaús in 2010, about 1 in 319 thousand residents.
How common is Casaús compared with other names?
In Cuba, Casaús is the 900th most common surname of 21,589 surnames recorded there.

What do you want to know about Casaús?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/casa%C3%BAs

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, “Casaús” — the 900th most common surname in Cuba. Data snapshot 2026-10-10.

See how Casaús parses inside a full name →