Massart

surname · Latin script

Meaning: from a pet form of Thomas

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

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

Massart is a surname written in the Latin script, with more bearers in Belgium than in any other country, where it is the 90th most common surname.

rarermore common
  • BEBelgium1 in 3.6K(measured from records)
  • FRFrance≈1 in 34K
  • USUnited States1 in 723Kas Massar

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Where a country counts another spelling of the name rather than Massart itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.

Belgium (measured from records)

3,246 people, 2008

2 (measured from records)

recorded for this name

Sources
210 (measured from records)

Highest-authority source

1 in 3.6K (inferred from the name graph)

Belgium

measured from records inferred from the name graph

Spellings & scripts(measured from records)

MassartLatin(measured from records)
МассарCyrillic(measured from records)

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(measured from records)

from a pet form of Thomas.

Sources 1

  • Dictionary of American Family Names

Where in the world(measured from records)

Massart 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 Massart is recorded, by country
CountryMost common spellingSources
BE Belgium#903,2461 in 3.6K3.2KMassart84
FR France—≈2,000 est.≈1 in 34K223Massart210
US United States—460as Massar1 in 723K527Massart129
IN India—366as Massar1 in 3.6M366—1
NL Netherlands—299as Massar1 in 58K299Massart6
LU Luxembourg#826≈62 est.≈1 in 10K—Massart10
EE Estonia—≈2 est.≈1 in 701Klisted—2

3,246 people counted by Familienaam.be — Belgian family-name frequency (population register), 2008. 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); Familienaam.be — Belgian family-name frequency (population register); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; Instate — India surnames (clean spellings) from electoral rolls; CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007). 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).

Notable people with this name(measured from records)

1850190019502000Jean Massart, b. 1865Léontine Massart, b. 1885Mary Massart, b. 1891Marguerite Massart, b. 1900Curzio Massart, b. 1907Lucien Massart, b. 1908Dave Massart, b. 1919Olivier Massart, b. 1969Alexis Massart, b. 1969

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)

FormalMadame, Monsieur,Dear Massart, (English)
InformalMadame, Monsieur,Hello, (English)

Evidence(measured from records)

Attested in 20 sources across 9 countries.

Reference works 5

  • Dictionary of American Family Names
  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • Wikipedia surname tokens
  • Wikidata name items (native-script + romanized given/family names)
  • jeantosti.com — Dictionnaire des noms de famille de France et d'ailleurs (Jean Tosti)

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 Massart mean, and where does it come from?
from a pet form of Thomas. Recorded by Dictionary of American Family Names.
How do you pronounce Massart?
A machine transcription gives /masaʁ/ (IPA) for French.
In which country does Massart have the most bearers?
In Belgium, the national register counted about 3.2 thousand people named Massart, more than in any other country we hold, where it is most often spelled massart.
Where is Massart most common?
Massart is densest in Belgium, where the national register counts about 1 in 3.6 thousand people carrying it.
How common is the name Massart?
In Belgium, the national register counted 3,246 people named Massart in 2008, about 1 in 3.6 thousand residents.
How common is Massart compared with other names?
In Belgium, Massart is the 90th most common surname of 246,397 surnames recorded there.

What do you want to know about Massart?

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Please leave out anyone's personal details (see Privacy).

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

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, “Massart” — the 90th most common surname in Belgium. Data snapshot 2026-10-10.

See how Massart parses inside a full name →