What does the name Thaddeus mean? The meaning of the name Thaddeus is Praise. The origin of the name Thaddeus is Greek. This is the culture in which the name originated, or in the case of a word, the language.
Alternate spellings: Thaddaeus, Thadeus
People who like the name Thaddeus also like: Theodore
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Name Notes: Alternate spelling of Thaddaeus.