Θαδδαῖος

Thaddeus

boyAramaicChristian

Thaddeus is a Christian boy name of Aramaic, via Greek origin, meaning “Possibly 'heart' or 'gift of God'”.

MeaningPossibly 'heart' or 'gift of God'
GenderBoy
OriginAramaic, via Greek
Written asΘαδδαῖος
PronunciationTHAD-ee-us
TraditionChristian
Used inUnited States, Poland, United Kingdom

Meaning and origin of Thaddeus

Thaddeus is the name of one of the twelve apostles in Matthew 10:3 and Mark 3:18. Its meaning is debated: some scholars derive it from an Aramaic word for 'breast' or 'heart', giving 'courageous heart', while others see it as a short form of a Greek name such as Theodotos, 'gift of God'. Church tradition identifies him with Jude, the brother of James. The name was popular in Poland as Tadeusz.

Is Thaddeus a Christian name?

Yes, Thaddeus is a New Testament name, an apostle often equated with Saint Jude, patron saint of lost causes.

How popular is Thaddeus?

An uncommon but rising name in the US, often shortened to Tad or Thad.

Gifts with the name Thaddeus

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Spellings and variants of Thaddeus

Names similar to Thaddeus

More Christian boy names

Frequently asked questions

What does the name Thaddeus mean?

Thaddeus means 'Possibly 'heart' or 'gift of God''. It is of Aramaic, via Greek origin.

Is Thaddeus a Christian name?

Yes, Thaddeus is a New Testament name, an apostle often equated with Saint Jude, patron saint of lost causes.

How do you pronounce Thaddeus?

Thaddeus is pronounced THAD-ee-us.

Is Thaddeus a boy or girl name?

Thaddeus is usually a boy name.

Updated October 2026. Spotted a mistake? Tell us.