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In all the world, Thaddaeus (Tadeu
, Tadeo
, Thaddaeus
) is a common boy's given name. The first name Thaddaeus is characteristic of Brazil, where it is quite a rare male name, Equatorial Guinea, and Uruguay. Not in comparison with a country's population, this name is the most popular in Brazil, Mexico, and Tanzania. Likewise, Thaddaeus is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Tadeu | Brazil, Angola, Mexico, United States, Peru |
| Tadeo | Philippines, Brazil, Mexico, Uganda, Peru |
| Thaddaeus | Philippines, Spain, Brazil, Nigeria, United States |
Thaddaeus is also a name for the fictitious and mythical characters: Tadeo Jones , the fictional character, Tad the Lost Explorer and the Secret of King Midas and Tadeo Brakko , character in Rat-Man.