Aloïsi

surname · Latin script

Aloïsi is a surname written in the Latin script, with more bearers in the United States than in any other country.

rarermore common
  • ARArgentina1 in 263K(measured from records)
  • CHSwitzerland1 in 82K
  • USUnited States1 in 738K

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)

451 people, 2010

Record sources
31 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 82K (inferred from the name graph)

Switzerland

measured from records inferred from the name graph

Spellings & scripts

(measured from records)

One other spelling is counted as the same name:

Locally spelled Aloisi in AR Argentina, US United States, BR Brazil and 1 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

No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.

Cited for this meaning 2

  • Dizionario dei cognomi italiani
  • Dicionário dos sobrenomes italianos

Attested across 17 languages in the etymology graph.

Where in the world

(measured from records)

Aloïsi 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 Aloïsi is recorded, by country
CountryMost common spellingSources
US United States4511 in 738K451Aloisi19
AR Argentina1731 in 263K173Aloisi31
CH Switzerland1021 in 82K102—2
BR Brazil871 in 2.4M87Aloisi27
ES Spain311 in 1.6M31Aloisi13
BE Belgium51 in 2.3M5—1

451 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: RENAPER — Apellidos (person counts, national); Census Bureau — Surname Frequency 2010; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); BFS — Familiennamen der Wohnbevölkerung (surnames); INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); Familienaam.be — Belgian family-name frequency (population register). 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)

2 registers and reference works attest this spelling, across 1 country.

Official registers attesting Aloïsi
CountryRegisterYearCountRank
BE BelgiumFamilienaam.be — Belgian family-name frequency (population register)20081#211,250

Reference works 1

  • Wikidata name items (native-script + romanized given/family names)

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

In which country does Aloïsi have the most bearers?
In the United States, the national register counted about 451 people named Aloïsi, more than in any other country we hold, where it is most often spelled aloisi.
Where is Aloïsi most common?
Measured as a share of residents rather than as a count, Aloïsi is densest in Switzerland — about 1 in 82 thousand people — even though United States holds more of our records for it.
How common is the name Aloïsi?
In the United States, the national register counted 451 people named Aloïsi in 2010, about 1 in 738 thousand residents.

What do you want to know about Aloïsi?

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/alo%C3%AFsi

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, “Aloïsi”. Data snapshot 2026-10-13.

See how Aloïsi parses inside a full name →