Demarchi

surname · Latin script

Meaning: grafia justaposta de De Marchi

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

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

rarermore common
  • ARArgentina1 in 14K(measured from records)
  • BRBrazil1 in 54K
  • CHSwitzerland1 in 43K

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)

3,903 people

Sources
101 (measured from records)

Highest-authority source

1 in 14K (inferred from the name graph)

Argentina

measured from records inferred from the name graph

Name dossier (print, CSV)

Meaning & origin(measured from records)

grafia justaposta de De Marchi

Sources 1

  • Dicionário dos sobrenomes italianos

Where in the world(measured from records)

Demarchi 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 Demarchi is recorded, by country
CountryMost common spellingSources
BR Brazil3,9031 in 54K3.9KDemarchi101
AR Argentina3,1961 in 14K3.2KDemarchi73
IT Italy≈1,000 est.≈1 in 62KlistedDemarchi33
US United States5181 in 642K531Demarchi64
FR France≈320 est.≈1 in 214K46—2
CH Switzerland1971 in 43K197Demarchi8
UY Uruguay771 in 44K77Demarchi5

3,903 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: RENAPER — Apellidos (person counts, national); IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; BFS — Familiennamen der Wohnbevölkerung (surnames); the xinhua-italian-manual register; INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public); INSEE — Fichier des noms de famille (1891–2000). 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)

Demarchi is also recorded as 2 other names, grouped separately because the records behind them do not connect to the one described above.

  • French surname4 spellings in the group

    Most recorded in France, United States, Canada, Italy

    Also written De-Marchi, Démarchi

  • Polish surname2 spellings in the group

    Most recorded in United States, Poland

    Also written De Marchi

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.

Other recorded senses(measured from records)

Demarchi is also recorded in one other lexicon, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In Italian, inflection of demarcare:

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

Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.

Notable people with this name(measured from records)

175018001850190019502000Giovanni Antonio Demarchi, b. 1764Agostino Demarchi, b. 1813Alfredo Demarchi, b. 1857Luigi Demarchi, b. 1910Jean-Pierre Demarchi, b. 1928Aldo Demarchi, b. 1944Denny DeMarchi, b. 1962Níura Demarchi, b. 1963

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).

Evidence(measured from records)

Attested in 20 sources across 12 countries.

Official registers attesting Demarchi
CountryRegisterYearCountRank
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)—3.9K#2,751
AR ArgentinaRENAPER — Apellidos (person counts, national)—3.2K—
US United StatesCensus Bureau — Surname Frequency 20202020531#43,758
US United StatesCensus Bureau — Surname Frequency 20102010518#41,959
US United StatesCensus Bureau — Surname Frequency 20002000466#43,629
CH SwitzerlandBFS — Familiennamen der Wohnbevölkerung (surnames)2024197#6,350
UY UruguayINE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public)—77—
FR FranceINSEE — Fichier des noms de famille (1891–2000)196149—
FR FranceINSEE — Fichier des noms de famille (1891–2000)195149—
FR FranceINSEE — Fichier des noms de famille (1891–2000)193148—
FR FranceINSEE — Fichier des noms de famille (1891–2000)190147—
FR FranceINSEE — Fichier des noms de famille (1891–2000)194145—

Reference works 3

  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • 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

What does the name Demarchi mean, and where does it come from?
grafia justaposta de De Marchi Recorded by Dicionário dos sobrenomes italianos.
In which country does Demarchi have the most bearers?
In Brazil, the national register counted about 3.9 thousand people named Demarchi, more than in any other country we hold, where it is most often spelled demarchi.
Where is Demarchi most common?
Measured as a share of residents rather than as a count, Demarchi is densest in Argentina — about 1 in 14 thousand people — even though Brazil holds more of our records for it.
How common is the name Demarchi?
In Brazil, the national register counted 3,903 people named Demarchi, about 1 in 54 thousand residents.

What do you want to know about Demarchi?

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

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, “Demarchi”. Data snapshot 2026-10-10.

See how Demarchi parses inside a full name →