Troìa

surname · Latin script

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

  • ITItaly≈1 in 15Kfew records(inferred from the name graph)
  • CHSwitzerland1 in 120K
  • USUnited States1 in 255K

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.

Italy (inferred from the name graph)

≈3,800 people, est.

Record sources
229 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

≈1 in 15K (inferred from the name graph)

Italy, est.

measured from records inferred from the name graph

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Spellings & scripts

(measured from records)

One other spelling is counted as the same name:

Locally spelled Troia in US United States, GB United Kingdom, IT Italy and 3 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.

Attested across 15 languages in the etymology graph.

Where the surname Troìa is found

(measured from records)

Troìa 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 Troìa is recorded, by country
CountryMost common spellingSources
IT Italy≈3,800 est.≈1 in 15KlistedTroia27
US United States1,3051 in 255K1.3KTroia229
BR Brazil2221 in 954K222—1
FR France≈220 est.≈1 in 313K29—1
GB United Kingdom≈170 est.≈1 in 403K11Troia31
RO Romania≈120 est.≈1 in 165K—Troia3
CH Switzerland701 in 120K70Troia3
JM Jamaica≈12 est.≈1 in 228K—Troia1

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; Surnames of England and Wales (taliesin-arlein.net, Sept 2002 electoral register); IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); BFS — Familiennamen der Wohnbevölkerung (surnames); 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)

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

  • a separate surname2 spellings in the group

    Most recorded in United States, Italy, United Kingdom

    Also written Troia

5 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.

Evidence

(measured from records)

No register attests this spelling yet

None of the official registers or reference works in our corpus lists Troìa 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

Which countries have the most people with the surname Troìa?
Mondonomo estimates about 3.8 thousand people named Troìa in Italy, more than in any other country we hold, where it is most often spelled troia. After it come United States, Brazil, France and United Kingdom; the country table on this page ranks them.
How common is the name Troìa?
In the United States, the national register counted 1,305 people named Troìa in 2010, about 1 in 255 thousand residents.

What do you want to know about Troìa?

Nobody replies to these one by one, but what readers ask decides what these pages answer next.

Please leave out anyone's personal details (see Privacy).

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

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, “Troìa”. Data snapshot 2026-10-13.

See how Troìa parses inside a full name →