Casaubon

surname · Latin script

Meaning, in English: From a medieval French nickname for someone who lives in a fine house, from Old Provençal casal 'cottage' + bon 'good'

(measured from records)Officially recorded in 5 countries · latest register: BFS, 2024

/kasaubon/(machine-generated) Spanish · model-generated

Say it in

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

  • ARArgentina1 in 288K(measured from records)
  • ESSpain1 in 403K
  • CHSwitzerland1 in 1.1M

carrying the name, as counted by each country's national register. Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.

Argentina (measured from records)

158 people

Record sources
102 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 288K (inferred from the name graph)

Argentina

measured from records inferred from the name graph

Meaning & origin

(measured from records)

From a medieval French nickname for someone who lives in a fine house, from Old Provençal casal 'cottage' + bon 'good'.

Cited for this meaning 1

  • Encyclopedia of surnames [the complete companion to tracing your names history]

Attested across 4 languages in the etymology graph.

How Casaubon is read

(measured from records)

Casaubon is one spelling over 3 language communities, and the dictionaries record it differently in 2 of them. Each row is what a source recorded for that language, beside the share of this name’s records the language holds. No single row is the name’s meaning.

  • Spanish38%

    No dictionary in our sources glosses Casaubon in Spanish.

  • French33%

    nom de plusieurs localités dans les Pyrénées-Atlantiques (Aquitaine)

    as a nameDictionnaire des noms de famille du Canada français. Anthroponymie et généalogie. 2e édition

  • English26%

    From a medieval French nickname for someone who lives in a fine house, from Old Provençal casal 'cottage' + bon 'good'.

    as a nameEncyclopedia of surnames [the complete companion to tracing your names history]

    A surname. Often refers to French intellectual Isaac Casaubon.

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

    The Rev. Edward, character in

    as a namePronouncing Dictionary of Proper Names

    George Eliot's Middlennarch

    as a namePronouncing Dictionary of Proper Names

The share is ours — how much of this name’s records each language holds. The sense beside it is the source’s, quoted and credited, including where it names a gender. We do not publish a gender of our own per language: our records carry one figure for the spelling as a whole.

Where in the world

(measured from records)

Casaubon 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 Casaubon is recorded, by country
CountryMost common spellingSources
AR Argentina1581 in 288K158——
ES Spain1241 in 403K124——
US United States1051 in 3.2M108Casaubon54
CH Switzerland81 in 1.1M8—1
FR France——18Casaubon102
CA Canada———Casaubon47

158 people counted by RENAPER — Apellidos (person counts, national). 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: INSEE — Fichier des noms de famille (1891–2000); RENAPER — Apellidos (person counts, national); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); BFS — Familiennamen der Wohnbevölkerung (surnames). 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)

Casaubon is also recorded as 4 other names, grouped separately because the records behind them do not connect to the one described above.

  • English surname6 spellings in the group

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

    Languages: English, Dutch

    Also written Casaubón

  • a separate name2 spellings in the group

    Also written Casaubón

  • a separate name3 spellings in the group

    Also written Casaubón

  • a separate name5 spellings in the group

    Also written Casaubón

27 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)
1400160018002000Arnauld Casaubon, b. 1525Isaac Casaubon, b. 1559Méric Casaubon, b. 1599François-Honoré Casaubon de Maniban, b. 1684Janine Darcey, b. 1917Jakes Casaubon, b. 1925Pascual Casaubon, b. 1944Édouard Casaubon, b. 1944Marcelo Ebrard, b. 1959

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)
FormalEstimado/a Casaubon,Dear Casaubon, (English)
InformalEstimado/a Casaubon,Hello, (English)

Evidence

(measured from records)

10 registers and reference works attest this spelling, across 5 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 Casaubon mean, and where does it come from?
From a medieval French nickname for someone who lives in a fine house, from Old Provençal casal 'cottage' + bon 'good'. Recorded by Encyclopedia of surnames [the complete companion to tracing your names history].
How do you pronounce Casaubon?
In Spanish /kasaubon/. Transcriptions are machine-generated except where a dictionary is named.
In which country does Casaubon have the most bearers?
In Argentina, the national register counted about 158 people named Casaubon, more than in any other country we hold.
Where is Casaubon most common?
Casaubon is densest in Argentina, where the national register counts about 1 in 288 thousand people carrying it.
How common is the name Casaubon?
In Argentina, the national register counted 158 people named Casaubon, about 1 in 288 thousand residents.

What do you want to know about Casaubon?

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

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, “Casaubon”. Data snapshot 2026-10-13.

See how Casaubon parses inside a full name →