Gustaw

given name · Latin script

Meaning: Gustavus

A male name· listed as male by the registers that count names by sex

(measured from records)Officially recorded in 13 countries · latest register: dane.gov.pl, 2026

/ˈɡus.taf/(recorded in a dictionary) Polish · from Wiktionary

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Gustaw is a male given name written in the Latin script, with more bearers in Poland than in any other country.

  • PLPoland1 in 5.1K(measured from records)
  • SESweden1 in 104K
  • ISIceland1 in 351K

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.

Poland (measured from records)

7,470 people, 2026

Record sources
75 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 5.1K (inferred from the name graph)

Poland

measured from records inferred from the name graph

Meaning & origin

(measured from records)

Gustavus

Cited for this meaning 1

  • Polish Personal Names (CIA Foreign Names Studies, ch. 24)

Attested across 16 languages in the etymology graph.

Where in the world

(measured from records)

Gustaw 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 Gustaw is recorded, by country
CountryMost common spellingSources
PL Poland#8207,4701 in 5.1K7.5KGustaw75
SE Sweden—981 in 104K98—1
US United States—≈48 est.≈1 in 7MlistedGustaw43
DE Germany—≈28 est.≈1 in 3M1Gustaw1
NL Netherlands—≈24 est.≈1 in 761K—Gustaw3
DK Denmark—131 in 451K13——
IS Iceland—11 in 351K1——

7,470 people counted by dane.gov.pl — PESEL given names (first + second name position, 2026-01-20), 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 given names (first + second name position, 2026-01-20); Skatteverket — Sök hur många som har ett visst namn (living population); Danmarks Statistik — Hvor mange hedder...? (living-population name counts); the de-leipzig-vornamen register; Þjóðskrá Íslands — Name frequencies (NafnTíðni, registry). 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).

Notable people with this name

(measured from records)
1880190019201940Gustaw Morcinek, b. 1891Gustaw Herling-Grudziński, b. 1919Gustaw Lutkiewicz, b. 1924

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)
InformalCześć Gustaw,Hi Gustaw, (English)

A formal English salutation is built on the surname, so it needs a full name — on its own, a first name only supports the informal form.

Evidence

(measured from records)

25 registers and reference works attest this spelling, across 13 countries.

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

Frequently asked questions

What does the name Gustaw mean, and where does it come from?
Gustavus Recorded by Polish Personal Names (CIA Foreign Names Studies, ch. 24).
How do you pronounce Gustaw?
In Polish /ˈɡus.taf/ (Wiktionary).
Which countries have the most people named Gustaw?
In Poland, the national register counted about 7.5 thousand people named Gustaw, more than in any other country we hold, where it is most often spelled gustaw. After it come Sweden, United States, Germany and Netherlands; the country table on this page ranks them.
Where is Gustaw most common?
Gustaw is densest in Poland, where the national register counts about 1 in 5.1 thousand people carrying it.
Is Gustaw a male or female name?
Gustaw is a male name. National registers that list it by sex list it as male: Poland (dane.gov.pl, 2026).
How common is the name Gustaw?
In Poland, the national register counted 7,470 people named Gustaw in 2026, about 1 in 5.1 thousand residents.
How common is Gustaw compared with other names?
In Poland, Gustaw is the 820th most common given name of 25,969 given names recorded there.

What do you want to know about Gustaw?

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

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, “Gustaw” — the 820th most common given name in Poland. Data snapshot 2026-10-13.

See how Gustaw parses inside a full name →