Klyachko
surname · Latin script
Klyachko is a surname written in the Latin script, with more bearers in Russia than in any other country. Klyachko is also written Клячко in Cyrillic.
- RURussia≈1 in 800Kas Клячко(inferred from the name graph)
- UAUkraine≈1 in 2.4Mfew recordsas Клячко
- PLPoland1 in 19Mas Kliachko
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 Klyachko 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)
- Record sources
- 81 (measured from records)
- ≈1 in 9.8M (inferred from the name graph)
≈180 named Клячко, est.
recorded for this name
corpus datasets behind its best-documented spelling
strongest: highest-authority source
United States, est.
measured from records inferred from the name graph
Klyachko in other scripts: Cyrillic
(measured from records)One other spelling is counted as the same name:
Locally spelled Клячко in RU Russia, UA Ukraine, IL Israel 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 in 1 language in the etymology graph.
Where the surname Klyachko is found
(measured from records)Klyachko 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 | ≈180 est. | ≈1 in 801K | — | Клячко | 81 |
| US United States | ≈35 est. | ≈1 in 9.8M | — | Klyachko | 21 |
| UA Ukraine | ≈16 est. | ≈1 in 2.4M | — | Клячко | 10 |
| BY Belarus | ≈8 est. | ≈1 in 1.1M | — | Клячко | 5 |
| CA Canada | ≈3 est. | ≈1 in 13M | — | Klyachko | 3 |
| IL Israel | ≈2 est. | ≈1 in 5.7M | — | Клячко | 3 |
| PL Poland | 2as Kliachko | 1 in 19M | 2 | — | — |
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 living persons (surnames). 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)No register attests this spelling yet
Frequently asked questions
- Which countries have the most people with the surname Klyachko?
- Mondonomo estimates about 179 people named Клячко in Russia, more than in any other country we hold. After it come United States, Ukraine, Belarus and Canada; the country table on this page ranks them.
- How common is the name Klyachko?
- In Poland, the national register counted 2 people named Kliachko in 2026, about 1 in 19 million residents.
What do you want to know about Klyachko?
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/klyachkoThe 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, “Klyachko”. Data snapshot 2026-10-13.