Pièrro

given name · Latin script

Recorded as a male name· opposite-gender records fall within measured source noise

Pièrro is a given name written in the Latin script, with more bearers in the United States than in any other country. Recorded meaning: var. meridional de Pietro, Piero.

rarermore common
  • UYUruguay1 in 65K(measured from records)
  • ARArgentina1 in 134K
  • USUnited States1 in 203K

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)

1,635 people, 2010

Sources
8 (measured from records)

Highest-authority source

1 in 65K (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 Pierro in US United States.

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)

var. meridional de Pietro, Piero

Sources 1

  • Dicionário dos sobrenomes italianos

Attested across 13 languages in the etymology graph.

Where in the world(measured from records)

Pièrro 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 Pièrro is recorded, by country
CountryMost common spellingSources
US United States1,6351 in 203K1.6KPierro8
AR Argentina3401 in 134K340——
UY Uruguay521 in 65K52——
CH Switzerland341 in 247K34—1
ES Spain221 in 2.3M22——

1,635 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; RENAPER — Apellidos (person counts, national); INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public); BFS — Familiennamen der Wohnbevölkerung (surnames); INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal). 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)

Pièrro is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • Italian surname3 spellings in the group

    Most recorded in Italy, United States, Canada, United Kingdom

    Also written Pierro, Pierrò

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.

Evidence(measured from records)

No register attests this spelling yet

None of the official registers or reference works in our corpus lists Pièrro 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 Pièrro mean, and where does it come from?
var. meridional de Pietro, Piero Recorded by Dicionário dos sobrenomes italianos.
Is Pièrro a male or female name?
Pièrro is a male name in our records. Opposite-gender entries fall within the cross-gender noise we measure in the source data, so we don't report them as usage.
In which country does Pièrro have the most bearers?
In the United States, the national register counted about 1.6 thousand people named Pièrro, more than in any other country we hold, where it is most often spelled pierro.
Where is Pièrro most common?
Measured as a share of residents rather than as a count, Pièrro is densest in Uruguay — about 1 in 65 thousand people — even though United States holds more of our records for it.
How common is the name Pièrro?
In the United States, the national register counted 1,635 people named Pièrro in 2010, about 1 in 203 thousand residents.

What do you want to know about Pièrro?

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Query this name via API
curl https://api.mondonomo.ai/api/v1/name-graph/pi%C3%A8rro

The same payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. Rate-limited for casual use; a free API key gives 1,000 requests a day, and bulk access is licensed separately.

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, “Pièrro”. Data snapshot 2026-10-10.

See how Pièrro parses inside a full name →