SergeÏ

given name · Latin script

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

SergeÏ is a given name written in the Latin script, with more bearers in Russia than in any other country, where it is the 3rd most common given name. Recorded meaning: From Latin Sergius, an old Roman family name of uncertain origin. St Sergei of Radonezh (1314-92) is one of the most popular of all Russian saints.

rarermore common
  • FIFinland1 in 8.9K(measured from records)
  • RURussia≈1 in 31as Сергей
  • UAUkraine≈1 in 36as Сергій

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Where a country counts another spelling of the name rather than SergeÏ itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.

Russia (inferred from the name graph)

≈4,500,000 named Сергей, est.

#8 (measured from records)

of 15M given names

9 (measured from records)

recorded for this name

Sources
499 (measured from records)

Highest-authority source

1 in 8.9K (inferred from the name graph)

Finland

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

СергейCyrillic(measured from records)
SergioLatin(measured from records)
סרגייHebrew(measured from records)
ՍերգեյArmenian(measured from records)
ΣεργιοςGreek(measured from records)
სერგეიGeorgian(measured from records)
เซอร์เกThai(measured from records)
세르게이Hangul(measured from records)
সের্গেইBengali(measured from records)

6 other spellings are counted as the same name:

Locally spelled Сергей in RU Russia, BY Belarus, FI Finland, Sergio in AR Argentina, BR Brazil, ES Spain, Сергій in UA Ukraine and Sergej in MD Moldova.

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 Sergius, an old Roman family name of uncertain origin. St Sergei of Radonezh (1314-92) is one of the most popular of all Russian saints.

Sources 2

Attested across 31 languages in the etymology graph.

Where in the world(measured from records)

SergeÏ 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 SergeÏ is recorded, by country
CountryMost common spellingSources
RU Russia#3≈4,500,000 est.≈1 in 31#4Сергей311
UA Ukraine#6≈1,200,000 est.≈1 in 36listedСергій149
BR Brazil#53357,718as Sergio1 in 592405KSergio240
AR Argentina#62≈280,000 est.≈1 in 164427Sergio198
ES Spain#25210,727as Sergio1 in 237211KSergio283
BY Belarus#6≈170,000 est.≈1 in 56145Сергей112
MD Moldova#2565,336as Serghei1 in 5165KSergej40
LV Latvia#1620,413as Sergejs1 in 9220Kסרגיי60
FI Finland#46241 in 8.9K4.1KСергей46

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: RENAPER — Apellidos (person counts, national); IBGE — names by decade (Kaggle mirror); IBGE — Nomes (census name API); INE — Padrón per-token widgets (current living counts, given + apellidos); Universal Dependencies Belarusian-HSE Corpus — Person Names (UD_Belarusian-HSE); e-services.md — living population register; DVV — Etunimitilasto (Finnish given names register); DVV — Nimipalvelu (Finnish name service, per-name lookup); PMLP — Personu vārdi (given names in population register). 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)

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

  • a separate name5 spellings in the group

    Also written Sergeǐ, Sergeī, Sergeĭ, Sergei

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 SergeÏ under this spelling. The statistics on this page rest on person records, and the related names are inferred from the name graph.

Register rows as of the 2026-10-09 data build.

Frequently asked questions

What does the name SergeÏ mean, and where does it come from?
From Latin Sergius, an old Roman family name of uncertain origin. St Sergei of Radonezh (1314-92) is one of the most popular of all Russian saints. Recorded by A concise dictionary of first names and Nordic Names.
Is SergeÏ a male or female name?
SergeÏ 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 SergeÏ have the most bearers?
Mondonomo estimates about 4.5 million people named Сергей in Russia, more than in any other country we hold.
Where is SergeÏ most common?
Measured as a share of residents rather than as a count, SergeÏ is densest in Finland — about 1 in 8.9 thousand people — even though Russia holds more of our records for it.
How common is the name SergeÏ?
In Finland, the national register counted 624 people named SergeÏ, about 1 in 8.9 thousand residents.
How common is SergeÏ compared with other names?
In Russia, SergeÏ is the 3rd most common given name of 472,143 given names recorded there.

What do you want to know about SergeÏ?

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

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, “SergeÏ” — the 3rd most common given name in Russia. Data snapshot 2026-10-10.

See how SergeÏ parses inside a full name →