Tomasz

given name · Latin script

Recorded as a male name· opposite-gender records fall within measured source noise

Tomasz is a given name written in the Latin script, with more bearers in Poland than in any other country, where it is the 8th most common given name. In Polish, recorded as Thomas (prophet whose story is told in the Book of Daniel).

rarermore common
  • PLPoland1 in 72(measured from records)
  • NONorway1 in 1.9K
  • IEIreland≈1 in 4.8K

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)

533,223 people, 2026

4 (measured from records)

recorded for this name

Sources
295 (measured from records)

Highest-authority source

1 in 72 (inferred from the name graph)

Poland

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

TomaszLatin(measured from records)
ТомашCyrillic(measured from records)
토마시Hangul(measured from records)
โทมสซThai(measured from records)

One other spelling is counted as the same name:

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)

Thomas (prophet whose story is told in the Book of Daniel)

Sources 1

  • kaikki.org Wiktionary extract (IPA + transliterations)

Attested across 18 languages in the etymology graph.

How Tomasz is read(measured from records)

Tomasz is one spelling over 2 language communities, and the dictionaries record it differently in 2 of them. Each row is what a source recorded for that language, beside the share of this name’s records the language holds. No single row is the name’s meaning.

  • Polish83%

    Thomas (prophet whose story is told in the Book of Daniel)

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

    Thomas

    as a namePolish Personal Names (CIA Foreign Names Studies, ch. 24)

    A Twin Form Of Thomas

    as a nameBaby names, 25,350 baby names nicknames for your family, friends pets, including the top 100 names, 2,000 most popular…

  • English8.3%

    Polish; a twin form of Thomas

    as a nameBaby names, 25,350 baby names nicknames for your family, friends pets, including the top 100 names, 2,000 most popular…

The share is ours — how much of this name’s records each language holds. The sense beside it is the source’s, quoted and credited, including where it names a gender. We do not publish a gender of our own per language: our records carry one figure for the spelling as a whole.

Where in the world(measured from records)

Tomasz 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 Tomasz is recorded, by country
CountryMost common spellingSources
PL Poland#8533,2231 in 72535KTomasz276
DE Germany#989≈7,400 est.≈1 in 11K3Tomasz161
GB United Kingdom#678≈7,400 est.≈1 in 8.9K127Tomasz163
US United States—4,5981 in 72K4.6KTomasz295
NO Norway#5092,9251 in 1.9K8.3KTomasz62
SE Sweden—2,4341 in 4.2K2.4KTomasz60
IE Ireland#322≈1,100 est.≈1 in 4.8K—Tomasz62
IS Iceland#9595741 in 611574Tomasz31

533,223 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); dane.gov.pl — PESEL living persons (names); Census Bureau — First Name Frequency 2020 by sex; Surnames of England and Wales (taliesin-arlein.net, Sept 2002 electoral register); the de-duesseldorf-vornamen register; SSB PxWebApi — Persons/Last names by year (StatBank tables 10501/12891); SSB — Navnesøk (name-search service, living population); Skatteverket — Sök hur många som har ett visst namn (living population); 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).

Other names spelled this way(inferred from the name graph)

Tomasz is also recorded as 3 other names, grouped separately because the records behind them do not connect to the one described above.

  • French given name8 spellings in the group

    Most recorded in France, United States, Spain, United Kingdom

    Languages: French, Spanish, Portuguese

    Also written Tomász, Tomàsz

  • Hebrew given name3 spellings in the group

    Most recorded in Israel, Hungary, United States, Poland

    Also written טומש, תומאש

  • Hindi given name17 spellings in the group

    Most recorded in India, Georgia, United States, United Kingdom

    Languages: Hindi, Georgian, Bangla

    Also written Tamasa, Thomas, টমাস, Tamaşa, Tamasha

46 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)

Tomasz 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.

  • Polish form of THOMAS .

    as a word

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)

1940196019802000Tommy Wiseau, b. 1955Radosław Sikorski, b. 1963Wilhelm Sasnal, b. 1972Tomasz Bagiński, b. 1976Tomasz Majewski, b. 1981Paul Wesley, b. 1982Tomasz Kuszczak, b. 1982Tomasz Marczyński, b. 1984Wojciech Szczęsny, b. 1990Tomasz Kędziora, b. 1994

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).

Evidence(measured from records)

Attested in 58 sources across 29 countries.

Official registers attesting Tomasz
CountryRegisterYearCountRank
PL Polanddane.gov.pl — PESEL living persons (names)—535K#3
PL Polanddane.gov.pl — PESEL given names (first + second name position, 2026-01-20)2026533K#3
NO NorwaySSB — Navnesøk (name-search service, living population)—8.3K#468
US United StatesCensus Bureau — First Name Frequency 2020 by sex20204.6K#4,173
NO NorwaySSB PxWebApi — Persons/Last names by year (StatBank tables 10501/12891)20252.9K—
SE SwedenSkatteverket — Sök hur många som har ett visst namn (living population)—2.4K#940
SE SwedenSCB — Namnstatistik (to 2023)20201.6K—
IS IcelandÞjóðskrá Íslands — Name frequencies (NafnTíðni, registry)2026574—
IS IcelandHagstofa — population register names 20232023528#84
PL PolandMinistry of Digitalization — Imiona nadawane dzieciom w Polsce (2000–present)2025495—
US United StatesCensus Bureau — First Name Frequency 2020 by sex20206#4,173
PL Polanddane.gov.pl — PESEL given names (first + second name position, 2026-01-20)20266#10,585

Reference works 6

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

What does the name Tomasz mean, and where does it come from?
Thomas (prophet whose story is told in the Book of Daniel) Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
What are other forms of the name Tomasz?
In the etymology graph, Thomas, Tomas and Tommy are forms of the same name in other languages; Tomek is a recorded short or pet form.
In which country does Tomasz have the most bearers?
In Poland, the national register counted about 533 thousand people named Tomasz, more than in any other country we hold, where it is most often spelled tomasz.
Where is Tomasz most common?
Tomasz is densest in Poland, where the national register counts about 1 in 72 people carrying it.
Is Tomasz a male or female name?
Tomasz is a male name in our records. Opposite-gender entries fall within the cross-gender noise we measure in the source data, so we don't report them as usage.
How common is the name Tomasz?
In Poland, the national register counted 533,223 people named Tomasz in 2026, about 1 in 72 residents.
How common is Tomasz compared with other names?
In Poland, Tomasz is the 8th most common given name of 25,969 given names recorded there.

What do you want to know about Tomasz?

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

The same 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), and bulk access is licensed separately.

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, “Tomasz” — the 8th most common given name in Poland. Data snapshot 2026-10-10.

See how Tomasz parses inside a full name →