Meaning & origin
Where it comes from
Tadej is a romanization of Тадей. Тадей comes from Ancient Greek, and ultimately from Hebrew.
Explained through its name family
The story
Published U.S. birth records include this spelling as early as 2025. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Tadej through the years
- Babies since 1880
- 6
- 6 boys · 0 girls
- Most popular year
- 2025
- 6 babies
- 2025
- 6
- #11,824 for boys
- 2021–25 vs 2016–20
- —
- Too few births to compare
By the numbers
In 2025, this name appeared in 6 U.S. birth records for boys, ranking No. 11,824 among boys’ names. The recent annual counts are too incomplete to establish a ten-year comparison.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Tadej’s family of names
In Slovenian usage, Tadej has a conventional equivalent in the Spanish form Tadeo. In Slovenian usage, Tadej has a conventional equivalent in the Czech form Tadeáš. Tadej has a conventional equivalent in the German form Thaddäus.
Inner ring: spellings · outer: across languages.
Around the world
Tadej has relatives in 6 languages.
6 related names in 6 languages. Point at a dot, or tab to the map and use the arrow keys.
Spellings & scripts 2
The same name written differently, including transliterations into other scripts.
Across languages 16
Equivalents and cognates in other languages, plus older forms it grew from.
People named Tadej
- Tadej PogačarSlovenian cyclist (born 1998)
- Tadej ValjavecSlovenian cyclistborn 1977
- Tadej TrdinaSlovenian footballerborn 1988
- Tadej VidmajerSlovenian footballerborn 1992
- Tadej GolobSlovene writer and mountain climberborn 1967
Listed by how widely each person is written about, which says nothing about the name itself.
Similar names
If you love Tadej, these share its style, era, origin or sound, from outside its own family.