Máio

surname · Latin script

Máio is a surname written in the Latin script, with more bearers in Brazil than in any other country. Recorded meaning: from a nickname or personal name based on the word for the month of May, Latin Maius (see May 1).

rarermore common
  • BRBrazil1 in 59K(measured from records)
  • PTPortugal≈1 in 2.7M
  • UYUruguay1 in 16K

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)

3,578 people

Sources
129 (measured from records)

Highest-authority source

1 in 16K (inferred from the name graph)

Uruguay

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 Maio in BR Brazil, US United States, PT Portugal 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(measured from records)

from a nickname or personal name based on the word for the month of May, Latin Maius (see May 1).

Sources 2

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

Attested across 32 languages in the etymology graph.

Where in the world(measured from records)

Máio 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 Máio is recorded, by country
CountryMost common spellingSources
BR Brazil—3,5781 in 59K3.6KMaio103
US United States—1,8621 in 179K1.9KMaio129
AR Argentina—6511 in 70K651—1
CH Switzerland—2121 in 40K212Maio21
UY Uruguay—2091 in 16K209—1
PT Portugal#490≈4 est.≈1 in 2.7M—Maio72

3,578 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); Census Bureau — Surname Frequency 2010; RENAPER — Apellidos (person counts, national); BFS — Familiennamen der Wohnbevölkerung (surnames); 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 Máio 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 Máio mean, and where does it come from?
from a nickname or personal name based on the word for the month of May, Latin Maius (see May 1). Recorded by Dictionary of American Family Names and 국립국어원 외래어 표기 용례 자료 (NIKL loanword/foreign-name transcription examples).
In which country does Máio have the most bearers?
In Brazil, the national register counted about 3.6 thousand people named Máio, more than in any other country we hold, where it is most often spelled maio.
Where is Máio most common?
Measured as a share of residents rather than as a count, Máio is densest in Uruguay — about 1 in 16 thousand people — even though Brazil holds more of our records for it.
How common is the name Máio?
In Brazil, the national register counted 3,578 people named Máio, about 1 in 59 thousand residents.
How common is Máio compared with other names?
In Portugal, Máio is the 490th most common surname of 45,564 surnames recorded there.

What do you want to know about Máio?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/m%C3%A1io

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, “Máio” — the 490th most common surname in Portugal. Data snapshot 2026-10-10.

See how Máio parses inside a full name →