Guasti

surname · Latin script

Meaning: do lat. vastare, via vastus; desgastado, ferido, alquebrado, soldado decadente

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

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

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

rarermore common
  • BRBrazil1 in 229K(measured from records)
  • ARArgentina1 in 264K
  • ESSpain1 in 848K

carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.

Brazil (measured from records)

926 people

Sources
64 (measured from records)

Highest-authority source

1 in 229K (inferred from the name graph)

Brazil

measured from records inferred from the name graph

Meaning & origin(measured from records)

recorded in Spanish

do lat. vastare, via vastus; desgastado, ferido, alquebrado, soldado decadente.

Sources 1

  • Dicionário dos sobrenomes italianos

Attested in 1 language in the etymology graph.

Where in the world(measured from records)

Guasti 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 Guasti is recorded, by country
CountryMost common spellingSources
BR Brazil9261 in 229K926—1
AR Argentina1721 in 264K172——
ES Spain591 in 848K59Guasti6
CZ Czechia11 in 11M1——
IT Italy——listedGuasti64

926 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); the xinhua-italian-manual register; RENAPER — Apellidos (person counts, national); INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); MVČR — living population register 2017. 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)

18001850190019502000Cesare Guasti, b. 1822Amerigo Guasti, b. 1872Marcello Guasti, b. 1924Carlo Guasti, b. 1950Gisella Guasti, b. 1954Maria Teresa Guasti, b. 1959Niccolò Guasti, b. 1969Gaia Guasti, 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)

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

Evidence(measured from records)

Attested in 11 sources across 8 countries.

Official registers attesting Guasti
CountryRegisterYearCountRank
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)—926#9,961
AR ArgentinaRENAPER — Apellidos (person counts, national)—172—
ES SpainINE — Apellidos más frecuentes (Padrón Municipal)—59#39,841
ES SpainINE — Padrón per-token widgets (current living counts, given + apellidos)—59#39,527
CZ CzechiaMVČR — living population register 2017—1#230,132
IT Italy意大利语姓名译名手册 (Xinhua Italian Name Manual)———

Reference works 2

  • Wikidata name items (native-script + romanized given/family names)
  • Cognomix.it (Nomix s.r.l.) — Italian surname origin dictionary

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 Guasti?
A machine transcription gives /gwasti/ (IPA) for Spanish.
What does the name Guasti mean?
Recorded meaning: do lat. vastare, via vastus; desgastado, ferido, alquebrado, soldado decadente.
In which country does Guasti have the most bearers?
In Brazil, the national register counted about 926 people named Guasti, more than in any other country we hold.
Where is Guasti most common?
Guasti is densest in Brazil, where the national register counts about 1 in 229 thousand people carrying it.
How common is the name Guasti?
In Brazil, the national register counted 926 people named Guasti, about 1 in 229 thousand residents.

What do you want to know about Guasti?

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

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, “Guasti”. Data snapshot 2026-10-10.

See how Guasti parses inside a full name →