Štefaniak

surname · Latin script

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

rarermore common
  • PLPoland1 in 2.7K(measured from records)
  • NONorway1 in 76K
  • FIFinland1 in 180K

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.

Poland (measured from records)

13,947 people, 2026

Record sources
5 (measured from records)

corpus datasets behind its best-documented spelling

strongest: reference-verified

1 in 2.7K (inferred from the name graph)

Poland

measured from records inferred from the name graph

Spellings & scripts

(measured from records)

2 other spellings are counted as the same name:

Locally spelled Stefaniak in US United States.

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 16 languages in the etymology graph.

Where in the world

(measured from records)

Štefaniak 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 Štefaniak is recorded, by country
CountryMost common spellingSources
PL Poland13,9471 in 2.7K7K——
US United States1,0191 in 326K1KStefaniak3
BR Brazil2001 in 1.1M200——
NO Norway721 in 76K72——
SE Sweden441 in 232K44——
FI Finland311 in 180K31——
DK Denmark221 in 267K22——

13,947 people counted by dane.gov.pl — PESEL living persons (surnames), 2026. 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); Skatteverket — Sök hur många som har ett visst namn (living population); DVV — Nimipalvelu (Finnish name service, per-name lookup); 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)

Štefaniak is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • Croatian surname6 spellings in the group

    Most recorded in Croatia

    Also written Stefaniak

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)

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

Official registers attesting Štefaniak
CountryRegisterYearCountRank
PL Polanddane.gov.pl — PESEL living persons (surnames)20262—
PL Polanddane.gov.pl — PESEL living persons (names)—2#390,093

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

Frequently asked questions

In which country does Štefaniak have the most bearers?
In Poland, the national register counted about 14 thousand people named Štefaniak, more than in any other country we hold.
Where is Štefaniak most common?
Štefaniak is densest in Poland, where the national register counts about 1 in 2.7 thousand people carrying it.
How common is the name Štefaniak?
In Poland, the national register counted 13,947 people named Štefaniak in 2026, about 1 in 2.7 thousand residents.

What do you want to know about Štefaniak?

Nobody replies to these one by one, but what readers ask decides what these pages answer next.

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/%C5%A1tefaniak

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, “Štefaniak”. Data snapshot 2026-10-13.

See how Štefaniak parses inside a full name →