Mazzó

surname · Latin script

Mazzó is a surname written in the Latin script, with more bearers in Brazil than in any other country. Recorded meaning: l.from the Old Tuscan personal name Mazzus, from the Germanic personal name Maz(z)o. 2. possibly from a short form of Giacomazzo, a pejorative derivative of the personal name Giacomo (see James).

  • UYUruguay1 in 66K(measured from records)
  • BRBrazil1 in 92K
  • ARArgentina1 in 124K

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)

2,311 people

Record sources
75 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 66K (inferred from the name graph)

Uruguay

measured from records inferred from the name graph

Spellings & scripts

(measured from records)

One other spelling is counted as the same name:

Locally spelled Mazzo in BR Brazil, AR Argentina, US United States and 4 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

(measured from records)

l.from the Old Tuscan personal name Mazzus, from the Germanic personal name Maz(z)o. 2. possibly from a short form of Giacomazzo, a pejorative derivative of the personal name Giacomo (see James).

Cited for this meaning 2

  • Dictionary of American Family Names
  • Dicionário dos sobrenomes italianos

Where the surname Mazzó is found

(measured from records)

Mazzó 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 Mazzó is recorded, by country
CountryMost common spellingSources
BR Brazil2,3111 in 92K2.3KMazzo75
IT Italy≈540 est.≈1 in 109KlistedMazzo6
US United States3891 in 855K398Mazzo43
AR Argentina3671 in 124K367Mazzo30
CO Colombia≈85 est.≈1 in 623K—Mazzo23
CL Chile≈78 est.≈1 in 252K—Mazzo21
UY Uruguay511 in 66K51Mazzo10

2,311 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: IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); RENAPER — Apellidos (person counts, national); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2000; INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public). 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).

Evidence

(measured from records)

No register attests this spelling yet

None of the official registers or reference works in our corpus lists Mazzó under this spelling. The statistics on this page rest on person records, and the related names are inferred from the name graph.

Frequently asked questions

What does the name Mazzó mean, and where does it come from?
l.from the Old Tuscan personal name Mazzus, from the Germanic personal name Maz(z)o. 2. possibly from a short form of Giacomazzo, a pejorative derivative of the personal name Giacomo (see James). Recorded by Dictionary of American Family Names and Dicionário dos sobrenomes italianos.
Which countries have the most people with the surname Mazzó?
In Brazil, the national register counted about 2.3 thousand people named Mazzó, more than in any other country we hold, where it is most often spelled mazzo. After it come Italy, United States, Argentina and Colombia; the country table on this page ranks them.
Where is Mazzó most common?
Measured as a share of residents rather than as a count, Mazzó is densest in Uruguay — about 1 in 66 thousand people — even though Brazil holds more of our records for it.
How common is the name Mazzó?
In Brazil, the national register counted 2,311 people named Mazzó, about 1 in 92 thousand residents.

What do you want to know about Mazzó?

Nobody replies to these one by one, but what readers ask decides what these pages answer next.

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/mazz%C3%B3

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, “Mazzó”. Data snapshot 2026-10-13.

See how Mazzó parses inside a full name →