How to say it
ta · DE · o
/tɑːˈdeɪ.oʊ/
Masculine
Tadeo
Heart, courageous
What it means
The Spanish form of Thaddeus, an Aramaic name often read as 'heart' or 'courageous.'
Tadeo is the Spanish form of Thaddeus, the Aramaic name of one of the twelve apostles, usually read as 'heart' or 'courageous one.' St. Jude Thaddeus is invoked as the patron of hopeless causes. Tadeo is warm and popular across Latin America, with the friendly shorts Tao and Teo. It pairs the apostolic root with a soft, modern sound.
Popularity over time
peaked at #412 in 2024, currently #427 in 2025.
Source: U.S. Social Security Administration, names given to at least 5 babies in a year, 1880–present. See where the names are moving
Heads-up notes
- Nickname
Tao and Teo are the shorts.
- Worth knowing
The Spanish Thaddeus (the apostle); common across Latino communities.
Who's worn it
Historical figures, characters, and public faces who share the name. The cultural surface, for whatever weight you want to give it.
- St. Thaddeus one of the twelve apostles, often identified with Jude
Spelling variants
- Tadeu
- Thaddeus
- Taddeo
Names with the same feeling
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By style