Troján
surname · Latin script
(measured from records)Officially recorded in 1 country
Troján is a surname written in the Latin script, with more bearers in Poland than in any other country. Recorded meaning: From Latin Trōiānus.
- CZCzechia1 in 5.4K(measured from records)
- PLPoland1 in 8.8K
- SKSlovakia1 in 27K
carrying the name, as counted by each country's national register. 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.
- Poland (measured from records)
- Record sources
- 67 (measured from records)
- 1 in 5.4K (inferred from the name graph)
4,338 people, 2026
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Czechia
measured from records inferred from the name graph
Spellings & scripts
(measured from records)One other spelling is counted as the same name:
Locally spelled Trojan in US United States, BR Brazil.
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 Latin Trōiānus.
Cited for this meaning 3
- Wiktionary
- Dicionário dos sobrenomes italianos
- Skok, Etimologijski rječnik hrvatskoga ili srpskoga jezika (1971-74)
Attested across 24 languages in the etymology graph.
Where in the world
(measured from records)Troján 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.
4,338 people counted by dane.gov.pl — PESEL living persons (surnames), 2026. 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: dane.gov.pl — PESEL living persons (surnames); MVČR — living population register 2017; Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2000; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); JÚĽŠ SAV — Databáza priezvisk na Slovensku (surname database, 1995 census); DZS — Imena i prezimena (per-token lookup form). 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)1 register or reference work attests this spelling, across 1 country.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| CZ Czechia | MVČR — living population register 2017 | — | 2 | #176,186 |
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- What does the name Troján mean, and where does it come from?
- From Latin Trōiānus. Recorded by Wiktionary and Dicionário dos sobrenomes italianos and 1 other source.
- In which country does Troján have the most bearers?
- In Poland, the national register counted about 4.3 thousand people named Troján, more than in any other country we hold.
- Where is Troján most common?
- Measured as a share of residents rather than as a count, Troján is densest in Czechia — about 1 in 5.4 thousand people — even though Poland holds more of our records for it.
- How common is the name Troján?
- In Poland, the national register counted 4,338 people named Troján in 2026, about 1 in 8.8 thousand residents.
What do you want to know about Troján?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/troj%C3%A1nThe 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, “Troján”. Data snapshot 2026-10-13.