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Boy's nameOrigin: AramaicMultiple origin hypothesesThis name does not have a nameday in the official SK calendar

Tadeusz

[ˈtadɛuss]

Tadeusz is the quintessential Polish form of Thaddaeus, deeply ingrained in Poland's cultural and historical legacy. It was immortalized by the military leader and hero Tadeusz Kościuszko. It is a distinguished, patriotic, and noble choice for a son.

Name variants

International equivalents and translations

English:
Slovak:
Czech:
Hungarian:
Polish:
Tadeusz
Ukrainian:
German:
Spanish:
French:
Italian:
Portuguese:
Other world variants:
Compare this name
Opposite gender version:
Girl's name: Tadea

Origin and etymology of the name

Scholarly onomastic and linguistic analysis
Linguistic explanation and meaning

Traditionally interpreted as a brave man or one of great heart.

Detailed Slovak etymology analysis

Poľská podoba biblického mena Tadeáš, sprostredkovaná gréckym Thaddaios a latinským Thaddaeus. Jej vzdialeným východiskom je aramejské osobné meno Taddaj, ktorého presná etymológia nie je spoľahlivo objasnená.

AI assisted in preparing this text. The listed sources support checking individual claims; they do not guarantee expert review of the entire profile or legal eligibility of the name.

International Traveler Index

How easily Tadeusz is pronounced abroad, written on tickets, and perceived worldwide

100 / 100Svetobežník (Globálne meno)
Degree of global adaptability100 %
Passport & airline ticket spelling:

TADEUSZ

100% identical to original form
Script & diacritics:

No diacritics (ASCII)

Universal international spelling
World languages:

19 foreign variants

Česky, Anglicky, Maďarsky
Travel strengths of this name
  • •Zápis bez diakritiky – 100 % zhodný s medzinárodnými pasmi, letenkami a cudzími klávesnicami.
  • •Univerzálna výslovnosť – neobsahuje zhluky hlások náročné pre cudzincov.
  • •Ideálna dvojslabičná dĺžka – melodická a rýchlo zapamätateľná na celom svete.
  • •Globálne rozšírené meno – má priame ekvivalenty vo viac než 10 svetových jazykoch.

Name days and calendars

Dates in Slovak and international calendars
28 October
Polish Calendar
Pronunciation and phonetic note:[ˈtadɛuss]

V poľštine sa meno vyslovuje približne [tadeuš]; dvojica písmen sz označuje hlásku š.

Grammar & Cases

Overview of grammatical cases for greetings, cards, and official use
Syllable count: 3
1. Nominative:Who, what?
Tadeusz
2. Genitive:Of whom, of what?
Tadeusza
3. Dative:To whom, to what?
Tadeuszovi
4. Accusative:Whom, what?
Tadeusza
5. Vocative (address):Direct address
Tadeusz!
6. Locative:About whom, about what?
Tadeuszovi
7. Instrumental:With whom, with what?
Tadeuszom

Diminutives and pet forms

Affectionate and family nicknames
Domestic forms, nicknames and diminutives:
TadekTadzioTadzikTadeuszekTaduś
Formal address:Official correspondence and formal occasions
Dear Mr. Tadeusz
Familiar address (intimate form):Addressing family and friends
Tadeusz! Tadek!

Notable figures named Tadeusz

16

People connected to this name according to Wikidata and editorial sources.

All personalities catalog
Person type
Tadeusz Kościuszko
US
1746 – 1817Historical Figure

Polish, Lithuanian and American military leader (1746–1817)

Tadeusz Reichstein
CH
1897 – 1996Historical Figure

Polish-Swiss chemist (1897-1996)

Tadeusz Konwicki
PL
1926 – 2015Historical Figure

Polish writer and film director (1926–2015)

Tadeusz Kantor
PL
1915 – 1990Historical Figure

Polish artist (1915–1990)

Tadeusz Ajdukiewicz
1851 – 1916Historical Figure

Polish painter (1851-1916)

Tadeusz Dołęga-Mostowicz
1900 – 1939Historical Figure

Polish writer and journalist, author of over a dozen popular novels (1898–1939)

Tadeusz Boy-Żeleński
PL
1874 – 1941Historical Figure

Polish writer and translator (1874–1941)

Tadeusz Łomnicki
PL
1927 – 1992Historical Figure

Polish actor (1927-1992)

Test how Tadeusz sounds with your surname

Acoustic analyzer evaluates pronunciation fluency and syllable rhythm.

Supports compound surnames (e.g. Smith-Jones)

Full name:

Tadeusz Smith

2 + 1 = 3 syllables

75 / 100Very good
ID
Initials / monogram:with dots:T.S.without dots:TS
Recommendations and acoustics:
  • Say the full name aloud; some transitions may need clearer articulation.

Names like Tadeusz

Names with similar sound rhythm, origin, and style

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