Leonovich
surname · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
Leonovich is a surname written in the Latin script, with more bearers in Russia than in any other country.
- RURussia≈1 in 63Kas Леонович(inferred from the name graph)
- UAUkraine≈1 in 75Kas Леонович
- KZKazakhstan≈1 in 239Kas Леонович
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 Leonovich 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)
- 2 (measured from records)
- Sources
- 123 (measured from records)
- ≈1 in 5.2K (inferred from the name graph)
≈2,300 named Леонович, est.
recorded for this name
Highest-authority source
Belarus, est., as Леонович
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Locally spelled Леонович in RU Russia, UA Ukraine, KZ Kazakhstan and 1 more.
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 5 languages in the etymology graph.
Where in the world(measured from records)
Leonovich 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 | ≈2,300 est. | ≈1 in 63K | — | Леонович | 123 |
| BY Belarus | ≈1,800 est. | ≈1 in 5.2K | — | Леонович | 23 |
| PL Poland | 865as Leonowicz | 1 in 44K | 438 | — | — |
| UA Ukraine | ≈590 est. | ≈1 in 75K | — | Леонович | 27 |
| US United States | 133as Leonowicz | 1 in 2.5M | 133 | Leonovich | 26 |
| KZ Kazakhstan | ≈80 est. | ≈1 in 239K | 54 | Леонович | 25 |
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: 2021 National Population Census — popular surnames of Russians, by region of residence; dane.gov.pl — PESEL living persons (surnames); Census Bureau — Surname Frequency 2010. 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)
Attested in 4 sources across 3 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| PL Poland | dane.gov.pl — PESEL living persons (surnames) | 2026 | 9 | — |
| PL Poland | dane.gov.pl — PESEL living persons (names) | — | 9 | #144,390 |
| PL Poland | dane.gov.pl — PESEL living persons (surnames) | 2026 | 5 | — |
| PL Poland | dane.gov.pl — PESEL living persons (names) | — | 5 | #200,582 |
| US United States | wru Name Dictionary — US surnames, voter-file supplement (Khanna et al.) | — | — | — |
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- In which country does Leonovich have the most bearers?
- Mondonomo estimates about 2.3 thousand people named Леонович in Russia, more than in any other country we hold.
- How common is the name Leonovich?
- In Poland, the national register counted 865 people named Leonowicz in 2026, about 1 in 44 thousand residents.
What do you want to know about Leonovich?
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/leonovichThe 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, “Leonovich”. Data snapshot 2026-10-10.