Cieslak

surname · Latin script

Meaning: Pol. ciesla carpenter (cogn

Recorded for both men and women· direction only, no split published

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

Cieslak is a surname written in the Latin script, with more bearers in Poland than in any other country.

rarermore common
  • PLPoland1 in 1.7K(measured from records)
  • NONorway1 in 34K
  • FIFinland1 in 90K

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.

Poland (measured from records)

23,158 people, 2026

Sources
104 (measured from records)

Highest-authority source

1 in 1.7K (inferred from the name graph)

Poland

measured from records inferred from the name graph

Meaning & origin(measured from records)

Pol. ciesla carpenter (cogn. with Russ, teslo adze) + the redundant agent suffix -ak. Vars.: Chuck see Such Ciesla; Ciesielski (with surname suffix -ski; see Baranowski).

Sources 1

  • The Oxford Names Companion - The definitive guide to Surnames, First Names, and Place Names of the British Isles

Attested across 10 languages in the etymology graph.

Where in the world(measured from records)

Cieslak 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 Cieslak is recorded, by country
CountryMost common spellingSources
PL Poland#22523,1581 in 1.7K12KCieslak99
CN China—≈8,900 est.≈1 in 157K—Cieslak2
US United States—1,7461 in 191K1.7KCieslak104
BR Brazil—6931 in 306K693—2
FR France—≈480 est.≈1 in 143K43—1
NO Norway—1621 in 34K162Cieslak8
FI Finland—621 in 90K62—2
DK Denmark—421 in 140K42——

23,158 people counted by dane.gov.pl — PESEL living persons (surnames), 2026, counting the spelling cieślak. 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); Census Bureau — Surname Frequency 2010; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); SSB — Navnesøk (name-search service, living population); DVV — Nimipalvelu (Finnish name service, per-name lookup); INSEE — Fichier des noms de famille (1891–2000); Danmarks Statistik — Hvor mange hedder...? (living-population name counts). 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)

Cieslak is also recorded as 8 other names, grouped separately because the records behind them do not connect to the one described above.

  • English surname8 spellings in the group

    Most recorded in United States, Poland, Germany, United Kingdom

    Languages: English, Polish, German

    Also written Cieślak

  • French surname3 spellings in the group

    Most recorded in France, United States, Belgium, Canada

    Also written Cieślak

  • Portuguese surname4 spellings in the group

    Most recorded in Brazil, United States, Argentina, Colombia

    Languages: Portuguese, Spanish

    Also written Cieślak

  • a separate name3 spellings in the group

    Also written Ciešlak, Cieślak

  • Danish surname6 spellings in the group

    Most recorded in Denmark, United States, Norway

    Languages: Danish, Norwegian

    Also written Cieślak

  • Italian surname2 spellings in the group

    Most recorded in United States, Italy

    Also written Cieślak

  • Croatian surname11 spellings in the group

    Most recorded in United States

    Languages: Croatian, Serbian

    Also written Cieślak, Ciešlak

  • Swahili surname2 spellings in the group

    Most recorded in United States

    Also written Cieślak

33 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)

Cieslak is also recorded in one other lexicon, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In German, Aus poln. cieśla 'Zimmermann'; Berufsname. Bearer count: 305.

    as a nameDeutscher Familiennamenatlas, Band 5: Familiennamen nach Beruf und persönlichen Merkmalen

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)

1960197019801990Celso Cieslak, b. 1967Brad Cieslak, b. 1982Larissa Cieslak, b. 1987

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)

FormalDear Cieslak,
InformalHello,

Evidence(measured from records)

Attested in 25 sources across 16 countries.

Official registers attesting Cieslak
CountryRegisterYearCountRank
US United StatesCensus Bureau — Surname Frequency 201020101.7K#16,462
US United StatesCensus Bureau — Surname Frequency 202020201.7K#16,431
US United StatesCensus Bureau — Surname Frequency 200020001.7K#15,854
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)—693#12,713
NO NorwaySSB — Navnesøk (name-search service, living population)—162#9,723
FR FranceINSEE — Fichier des noms de famille (1891–2000)195193—
FR FranceINSEE — Fichier des noms de famille (1891–2000)193189—
FR FranceINSEE — Fichier des noms de famille (1891–2000)197181—
FR FranceINSEE — Fichier des noms de famille (1891–2000)194179—
FR FranceINSEE — Fichier des noms de famille (1891–2000)196173—
FR FranceINSEE — Fichier des noms de famille (1891–2000)192173—
FR FranceINSEE — Fichier des noms de famille (1891–2000)198172—

Reference works 4

These works list the name; their figures are licensed and are not reproduced here.

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

Frequently asked questions

Where does the name Cieslak come from?
Pol. ciesla carpenter (cogn. with Russ, teslo adze) + the redundant agent suffix -ak. Vars.: Chuck see Such Ciesla; Ciesielski (with surname suffix -ski; see Baranowski). Recorded by The Oxford Names Companion - The definitive guide to Surnames, First Names, and Place Names of the British Isles.
How do you pronounce Cieslak?
A machine transcription gives /ˈtʃɛsɫək/ (IPA) for English.
What does the name Cieslak mean?
Recorded meaning: Pol. ciesla carpenter (cogn.
In which country does Cieslak have the most bearers?
In Poland, the national register counted about 23 thousand people named Cieslak, more than in any other country we hold, where it is most often spelled cieslak.
Where is Cieslak most common?
Cieslak is densest in Poland, where the national register counts about 1 in 1.7 thousand people carrying it.
How common is the name Cieslak?
In Poland, the national register counted 23,158 people named Cieslak in 2026, about 1 in 1.7 thousand residents.
How common is Cieslak compared with other names?
In Poland, Cieslak is the 225th most common surname of 240,840 surnames recorded there.

What do you want to know about Cieslak?

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

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, “Cieslak” — the 225th most common surname in Poland. Data snapshot 2026-10-10.

See how Cieslak parses inside a full name →