Mafféi

surname · Latin script

Mafféi is a surname written in the Latin script, with more bearers in the United States than in any other country. Recorded meaning: patronymic or plural form of Maefeo.

rarermore common
  • DMDominica1 in 6.7K(measured from records)
  • UYUruguay1 in 12K
  • ARArgentina1 in 44K

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.

United States (measured from records)

2,187 people, 2010

Sources
143 (measured from records)

Highest-authority source

1 in 6.7K (inferred from the name graph)

Dominica

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

One other spelling is counted as the same name:

Locally spelled Maffei in US United States, CH Switzerland.

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)

patronymic or plural form of Maefeo.

Sources 3

  • Dictionary of American Family Names
  • 국립국어원 외래어 표기 용례 자료 (NIKL loanword/foreign-name transcription examples)
  • Dicionário dos sobrenomes italianos

Attested across 18 languages in the etymology graph.

Where in the world(measured from records)

Mafféi 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 Mafféi is recorded, by country
CountryMost common spellingSources
US United States2,1871 in 152K2.2KMaffei92
BR Brazil2,0301 in 104K2K——
AR Argentina1,0291 in 44K1K——
UY Uruguay2831 in 12K283——
CH Switzerland1501 in 56K150Maffei9
DM Dominica111 in 6.7K11——

2,187 people counted by Census Bureau — Surname Frequency 2010, 2010. 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: Census Bureau — Surname Frequency 2010; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); RENAPER — Apellidos (person counts, national); INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public); BFS — Familiennamen der Wohnbevölkerung (surnames); Dominica — Revised List of Electors May 2025. 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 Mafféi 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 Mafféi mean, and where does it come from?
patronymic or plural form of Maefeo. Recorded by Dictionary of American Family Names and 국립국어원 외래어 표기 용례 자료 (NIKL loanword/foreign-name transcription examples) and 1 other source.
In which country does Mafféi have the most bearers?
In the United States, the national register counted about 2.2 thousand people named Mafféi, more than in any other country we hold, where it is most often spelled maffei.
Where is Mafféi most common?
Measured as a share of residents rather than as a count, Mafféi is densest in Dominica — about 1 in 6.7 thousand people — even though United States holds more of our records for it.
How common is the name Mafféi?
In the United States, the national register counted 2,187 people named Mafféi in 2010, about 1 in 152 thousand residents.

What do you want to know about Mafféi?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/maff%C3%A9i

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, “Mafféi”. Data snapshot 2026-10-10.

See how Mafféi parses inside a full name →