Casaus

surname · Latin script

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

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

Casaus 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)

One other spelling is counted as the same name:

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.

Where in the world(measured from records)

Casaus 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 Casaus 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)

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

  • English surname4 spellings in the group

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

    Languages: English, German

    Also written Casaús

  • a separate name3 spellings in the group

    Also written Casaús, Casáus

  • a separate surname5 spellings in the group

    Most recorded in United States

    Also written Casaús

34 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)

175018001850190019502000Joaquín José Casaus, b. 1793Manuel Andrés Casaus, b. 1892Nicolau Casaus, b. 1913Eduardo Foncillas Casaus, b. 1937Víctor Casaus Sánchez, b. 1944Yolanda Casaus Rodríguez, b. 1974

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 Casaus,
InformalHello,

Evidence(measured from records)

Attested in 10 sources across 5 countries.

Official registers attesting Casaus
CountryRegisterYearCountRank
US United StatesCensus Bureau — Surname Frequency 201020101K#24,137
US United StatesCensus Bureau — Surname Frequency 20202020988#26,068
ES SpainINE — Apellidos más frecuentes (Padrón Municipal)—972#4,509
ES SpainINE — Padrón per-token widgets (current living counts, given + apellidos)—972#4,506
US United StatesCensus Bureau — Surname Frequency 20002000906#25,591
US United Stateswru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.)———

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

How do you pronounce Casaus?
A machine transcription gives /ˈkæsɔz/ (IPA) for English.
In which country does Casaus have the most bearers?
In the United States, the national register counted about 1.0 thousand people named Casaus, more than in any other country we hold, where it is most often spelled casaus.
How common is the name Casaus?
In the United States, the national register counted 1,042 people named Casaus in 2010, about 1 in 319 thousand residents.
How common is Casaus compared with other names?
In Cuba, Casaus is the 900th most common surname of 21,589 surnames recorded there.

What do you want to know about Casaus?

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

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

See how Casaus parses inside a full name →