Sergiy
given name · Latin script
A male name· listed as male by the registers that count names by sex
(measured from records)Officially recorded in 15 countries · latest register: datos.gob.ar, 1990
/seɾxji/(machine-generated) Spanish · model-generated · uncertain
Sergiy is a male 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. Sergiy is also written Сергей in Cyrillic, סרגיי in Hebrew and Սերգեյ in Armenian.
- RURussia≈1 in 30as Сергей(inferred from the name graph)
- UAUkraine≈1 in 35as Сергій
- BYBelarus≈1 in 35as Сергей
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 Sergiy itself, the figure is that spelling’s, and it is named. 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.
- Russia (inferred from the name graph)
- #8 (measured from records)
- 9 (measured from records)
- Record sources
- 499 (measured from records)
- ≈1 in 30 (inferred from the name graph)
≈4,800,000 named Сергей, est.
of 15M given names, spellings grouped
recorded for this name
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Russia, est., as Сергей
measured from records inferred from the name graph
Sergiy in other scripts: Cyrillic, Latin, Hebrew and 6 more
(measured from records)Locally spelled Sergio in AR Argentina, BR Brazil, MX Mexico, Сергей in RU Russia, BY Belarus, 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.
How to pronounce Sergiy
- Spanish:/seɾxji/(machine-generated) model-generated
Readings marked model-generated were transcribed by a model; the others are quoted from the dictionary named.
Meaning & origin
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Attested across 2 languages in the etymology graph.
Where in the world
(measured from records)Sergiy 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.
| Country | Most common spelling | Sources | ||||
|---|---|---|---|---|---|---|
| RU Russia | #3 | ≈4,800,000 est. | ≈1 in 30 | register #4 | Сергей | 311 |
| UA Ukraine | #6 | ≈1,100,000 est. | ≈1 in 35 | listed | Сергій | 149 |
| MX Mexico | #50 | ≈610,000 est. | ≈1 in 213 | 2.7K | Sergio | 270 |
| BR Brazil | #53 | 357,718as Sergio | 1 in 592 | 405K | Sergio | 240 |
| AR Argentina | #62 | ≈280,000 est. | ≈1 in 165 | 427 | Sergio | 198 |
| BY Belarus | #6 | ≈260,000 est. | ≈1 in 35 | 145 | Сергей | 112 |
| MD Moldova | #25 | 65,336as Serghei | 1 in 51 | 65K | Sergej | 40 |
| LV Latvia | — | 20,413as Sergejs | 1 in 92 | 20K | סרגיי | 60 |
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); RENAPO — name frequencies (eduardofv dataset); Universal Dependencies Belarusian-HSE Corpus — Person Names (UD_Belarusian-HSE); e-services.md — living population register; 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).
Notable people with this name
(measured from records)- Sergei Parajanovb. 1924GEnot in their usual nameSoviet Armenian and Georgian film director (1924-1990)
- Sergei Garmashb. 1958RUnot in their usual nameSoviet and Russian actor
- Sergei Bubkab. 1963UAnot in their usual nameUkrainian pole vaulter
The ten people covered by the most Wikipedia language editions — a proxy for cross-cultural notability, which favours historical and Western figures over equally prominent contemporary ones — shown by birth year. Source: Wikidata (CC0).
How to address them
(machine-generated)Evidence
(measured from records)23 registers and reference works attest this spelling, across 15 countries.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- How do you pronounce Sergiy?
- In Spanish /seɾxji/. Transcriptions are machine-generated except where a dictionary is named.
- Is Sergiy a male or female name?
- Sergiy is a male name. National registers that list it by sex list it as male: Poland (dane.gov.pl, 2026), United States (Census Bureau, 2020), Spain (INE) and Norway (SSB), among others.
- Which countries have the most people named Sergiy?
- Mondonomo estimates about 4.8 million people named Сергей in Russia, more than in any other country we hold. After it come Ukraine, Mexico, Brazil and Argentina; the country table on this page ranks them.
- How common is the name Sergiy?
- In Brazil, the national register counted 357,718 people named Sergio in 2022, about 1 in 592 residents.
- How common is Sergiy compared with other names?
- In Russia, Sergiy is the 3rd most common given name of 472,143 given names recorded there.
What do you want to know about Sergiy?
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/sergiyThe 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, “Sergiy” — the 3rd most common given name in Russia. Data snapshot 2026-10-13.