Sergiej
given name · Latin script
A male name· listed as male by the registers that count names by sex
(measured from records)Officially recorded in 1 country · latest register: dane.gov.pl, 2026
Sergiej is a male given name written in the Latin script, with more bearers in Poland than in any other country.
- PLPoland1 in 239K(measured from records)
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.
- Poland (measured from records)
- Record sources
- 5 (measured from records)
- 1 in 239K (inferred from the name graph)
160 people, 2026
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Poland
measured from records inferred from the name graph
Meaning & origin
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Where in the world
(measured from records)Sergiej 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.
160 people counted by dane.gov.pl — PESEL given names (first + second name position, 2026-01-20), 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 given names (first + second name position, 2026-01-20). 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)4 registers and reference works attest this spelling, across 1 country.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| PL Poland | dane.gov.pl — PESEL given names (first + second name position, 2026-01-20) | 2026 | 160 | #1,511 |
| PL Poland | dane.gov.pl — PESEL living persons (names) | — | 157 | #1,432 |
Reference works 1
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
- Is Sergiej a male or female name?
- Sergiej is a male name. National registers that list it by sex list it as male: Poland (dane.gov.pl, 2026).
- In which country does Sergiej have the most bearers?
- In Poland, the national register counted about 160 people named Sergiej, more than in any other country we hold.
- Where is Sergiej most common?
- Sergiej is densest in Poland, where the national register counts about 1 in 239 thousand people carrying it.
- How common is the name Sergiej?
- In Poland, the national register counted 160 people named Sergiej in 2026, about 1 in 239 thousand residents.
What do you want to know about Sergiej?
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/sergiejThe 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, “Sergiej”. Data snapshot 2026-10-13.