Kločko

surname · Latin script

(measured from records)Officially recorded in 2 countries

Kločko is a surname written in the Latin script, with more bearers in the United States than in any other country. Recorded meaning: from kloc ‘log’, ‘chunk’, ‘block of wood’, nickname for a clumsy or awkward man.

rarermore common
  • PLPoland1 in 815K(measured from records)
  • USUnited States1 in 1M
  • BRBrazil1 in 7.1M

carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.

United States (measured from records)

318 people, 2010

Record sources
7 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 815K (inferred from the name graph)

Poland

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts

(measured from records)

One other spelling is counted as the same name:

Locally spelled Klocko in UA Ukraine.

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 kloc ‘log’, ‘chunk’, ‘block of wood’, nickname for a clumsy or awkward man.

Cited for this meaning 1

  • Dictionary of American Family Names

Attested across 13 languages in the etymology graph.

Where in the world

(measured from records)

Kločko 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 Kločko is recorded, by country
CountryMost common spellingSources
US United States3181 in 1M318—1
PL Poland471 in 815K25——
BR Brazil301 in 7.1M30——
CZ Czechia11 in 11M1——
UA Ukraine———Klocko7

318 people counted by Census Bureau — Surname Frequency 2010, 2010. 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: Census Bureau — Surname Frequency 2010; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); dane.gov.pl — PESEL living persons (surnames); MVČR — living population register 2017. 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)

Kločko is also recorded as 4 other names, grouped separately because the records behind them do not connect to the one described above.

  • Lithuanian surname4 spellings in the group

    Most recorded in Lithuania, Latvia

    Languages: Lithuanian, Latvian

    Also written Klocko

  • Bulgarian surname12 spellings in the group

    Most recorded in Russia, United States, Ukraine, Türkiye

    Languages: Bulgarian, Croatian, Slovenian

    Also written Клочко, Klocko, Klochko

  • Slovak surname4 spellings in the group

    Most recorded in Slovakia

    Also written Klocko

  • a separate name2 spellings in the group

    Also written Klocko

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)

2 registers and reference works attest this spelling, across 2 countries.

Official registers attesting Kločko
CountryRegisterYearCountRank
CZ CzechiaMVČR — living population register 2017—1#199,505

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

Frequently asked questions

What does the name Kločko mean, and where does it come from?
from kloc ‘log’, ‘chunk’, ‘block of wood’, nickname for a clumsy or awkward man. Recorded by Dictionary of American Family Names.
In which country does Kločko have the most bearers?
In the United States, the national register counted about 318 people named Kločko, more than in any other country we hold.
Where is Kločko most common?
Measured as a share of residents rather than as a count, Kločko is densest in Poland — about 1 in 815 thousand people — even though United States holds more of our records for it.
How common is the name Kločko?
In the United States, the national register counted 318 people named Kločko in 2010, about 1 in 1.0 million residents.

What do you want to know about Kločko?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/klo%C4%8Dko

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, “Kločko”. Data snapshot 2026-10-13.

See how Kločko parses inside a full name →