Oleksii

given name · Latin script

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

/əɫɛksii/(machine-generated) pronunciation, model-generated

Oleksii is a given name written in the Latin script, with more bearers in Ukraine than in any other country, where it is the 82nd most common given name.

rarermore common
  • UAUkraine≈1 in 414(inferred from the name graph)
  • PLPoland1 in 1.4K
  • USUnited States1 in 647Kas Oleksiy

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 Oleksii 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.

Ukraine (inferred from the name graph)

≈110,000 people, est.

2 (measured from records)

recorded for this name

Sources
166 (measured from records)

Highest-authority source

≈1 in 414 (inferred from the name graph)

Ukraine, est.

measured from records inferred from the name graph

Spellings & scripts(measured from records)

OleksiiLatin(measured from records)
ОлексаCyrillic(measured from records)

2 other spellings are counted as the same name:

Locally spelled Oleksiy in US United States, ES Spain and Олексий in LV Latvia.

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 10 languages in the etymology graph.

Where in the world(measured from records)

Oleksii 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 Oleksii is recorded, by country
CountryMost common spellingSources
UA Ukraine#82≈110,000 est.≈1 in 414—Oleksii147
PL Poland#91427,4461 in 1.4K27KOleksii86
ES Spain—1,2921 in 39K1.3KOleksiy39
NO Norway—9031 in 6.1K3.6KOleksii16
US United States—514as Oleksiy1 in 647K514Oleksiy166
LV Latvia—4171 in 4.5K421Олексий13
EE Estonia#296≈360 est.≈1 in 3.5K39Oleksii13

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); Census Bureau — First Name Frequency 2020 by sex; SSB PxWebApi — Persons/Last names by year (StatBank tables 10501/12891); SSB — Navnesøk (name-search service, living population); INE — Padrón per-token widgets (current living counts, given + apellidos); Statistics Estonia — per-name Population Register counts (nimed); PMLP — Personu vārdi (given names in population register); PMLP — Personvārdu meklētājs (per-name population-register lookup). 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)

Oleksii is also recorded as 2 other names, grouped separately because the records behind them do not connect to the one described above.

  • English given name10 spellings in the group

    Most recorded in Ukraine, Germany, United States, Australia

    Languages: English, German, Dutch

    Also written Oleksiĭ

  • a separate name2 spellings in the group

    Also written Oleksiĭ

32 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.

Other recorded senses(measured from records)

Oleksii is also recorded in 2 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In Russian, var of Aleksei.

    as a wordA Dictionary of Period Russian Names (Wickenden / Goldschmidt 1996)

  • In Finnish, third-person singular present indicative of oleksia

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.

Notable people with this name(measured from records)

19201940196019802000Aleksei Petrenko, b. 1938Oleksiy Danilov, b. 1962Oleksiy Mykhaylychenko, b. 1963Oleksii Reznikov, b. 1966Oleksiy Arestovych, b. 1975Oleksiy Chernyshov, b. 1977Potap, b. 1981Oleksiy Byelik, b. 1981Olexii Honcharuk, b. 1984Oleksiy Torokhtiy, b. 1986
  • Aleksei Petrenkob. 1938RUnot in their usual nameUkrainian and Russian actor (1938–2017)
  • Oleksiy Danilovb. 1962UAnot in their usual nameUkrainian politician
  • Oleksiy Mykhaylychenkob. 1963UAnot in their usual nameSoviet and Ukrainian footballer and football coach
  • Oleksii Reznikovb. 1966UAUkrainian lawyer and politician
  • Oleksiy Arestovychb. 1975UAnot in their usual nameblogger
  • Oleksiy Chernyshovb. 1977UAnot in their usual nameUkrainian politician and top-manager, Head of the Board and CEO of “Naftogaz of Ukraine” NJSC
  • Potapb. 1981UAnot in their usual nameUkrainian singer, rapper and producer
  • Oleksiy Byelikb. 1981UAnot in their usual nameUkrainian footballer
  • Olexii Honcharukb. 1984UAnot in their usual name17th Prime Minister of Ukraine (2019-2020)
  • Oleksiy Torokhtiyb. 1986UAnot in their usual nameUkrainian weightlifter

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)

InformalПривіт, Oleksii!Hi Oleksii, (English)

A formal English salutation is built on the surname, so it needs a full name — on its own, a first name only supports the informal form.

Evidence(measured from records)

Attested in 29 sources across 17 countries.

Official registers attesting Oleksii
CountryRegisterYearCountRank
PL Polanddane.gov.pl — PESEL given names (first + second name position, 2026-01-20)202627K#118
PL Polanddane.gov.pl — PESEL living persons (names)—26K#118
NO NorwaySSB — Navnesøk (name-search service, living population)—3.6K#765
ES SpainINE — Padrón per-token widgets (current living counts, given + apellidos)—1.3K#2,398
NO NorwaySSB PxWebApi — Persons/Last names by year (StatBank tables 10501/12891)2025903—
NO NorwaySSB PxWebApi — Persons/Last names by year (StatBank tables 10501/12891)2024798—
EE EstoniaStatistics Estonia — per-name Population Register counts (nimed)—651#244
NO NorwaySSB PxWebApi — Persons/Last names by year (StatBank tables 10501/12891)2023597—
LV LatviaPMLP — Personvārdu meklētājs (per-name population-register lookup)—421#654
LV LatviaPMLP — Personu vārdi (given names in population register)—417—
ES SpainINE — Nombres más frecuentes (Padrón Municipal)—304#2,999
NO NorwaySSB PxWebApi — Persons/Last names by year (StatBank tables 10501/12891)2022271—

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

Frequently asked questions

How do you pronounce Oleksii?
A machine transcription gives /əɫɛksii/ (IPA) for Ukrainian.
Is Oleksii a male or female name?
Oleksii 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 Oleksii have the most bearers?
Mondonomo estimates about 106 thousand people named Oleksii in Ukraine, more than in any other country we hold, where it is most often spelled oleksii.
How common is the name Oleksii?
In Poland, the national register counted 27,446 people named Oleksii in 2026, about 1 in 1.4 thousand residents.
How common is Oleksii compared with other names?
In Ukraine, Oleksii is the 82nd most common given name of 85,149 given names recorded there.

What do you want to know about Oleksii?

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

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, “Oleksii” — the 82nd most common given name in Ukraine. Data snapshot 2026-10-10.

See how Oleksii parses inside a full name →