Home › Baby Names Directory › Thadeo
Thadeo
How to Pronounce Thadeo
Pronounced tah-DEH-oh /tɑˈdɛ.oʊ/Medium
Meaning: Spanish form of Thaddeus/Tadeo — possibly Aramaic, 'courageous heart', or 'gift of God'; routes layeredMedium
Popularity in the U.S. · SSA data
U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.
SSA data updated May 2026. How we source & verify this data.
History & Origin
Thadeo is a Spanish form of Thaddeus/Tadeo — possibly from Aramaic, 'courageous heart', or linked to 'gift of God' (routes layered, which we note) — one of the twelve apostles (St Jude Thaddeus, patron of lost causes). A melodic, devout name across the Spanish-speaking world.
In the U.S. it appears in Latino families. Rare, courageous-heart-or-gift-of-God at the root, and melodic.
Variations
Nicknames
Famous Bearers
- Famous bearers coming soon.
If you like Thadeo…
Explore names like Thadeo
Frequently Asked
What does the name Thadeo mean?
Thadeo is the Spanish Thaddeus — possibly 'courageous heart' or 'gift of God'; the routes are layered.
How do you pronounce Thadeo?
It's said tah-DEH-oh /tɑˈdɛ.oʊ/ — three syllables, stress on the second.
Is Thadeo a boy or girl name?
Thadeo is a boy's name.
How popular is Thadeo?
Thadeo is a rare name in the U.S.