What does Thaddeus mean?
Thaddeus \th(ad)-deus\ as a boys' name is pronounced THAD-ee-us. It is of Aramaic origin, and the meaning of Thaddeus is "heart". Also possibly derives from Theodorus, meaning "God's gift". Biblical: one of the 12 apostles. Jude is another form of the name.
Thaddeus has 1 feminine form: Thaddea.
Thaddeus is a somewhat popular first name for men (#611 out of 1220, Top 50%) but a rare last name for both adults and children. (2000 U.S. Census)
Presented below is the baby name popularity of Thaddeus for boys. Thaddeus reached its apex position of #375 in the U.S. during the years 1910-1919, and is at #732 presently. (Top 1000 Baby Names Records, 2014)
Judah (#243 a year ago), Judd, Jude (#162), Judson (#960), Tad and Thad are the popular varying forms of Thaddeus (#732 a year ago). Usage of these boy names was at its peak in 2014 (usage of 0.2719%), except for the versions Judson, Tad, Thad and Thaddeus which have become less stylish. Judah (#243) and Jude (#162) are two of the more fashionable names for newborns here, and there is also a revival in birth name usage for Jude. Below is a graphed analysis of the popularity of the boy name Thaddeus and affiliated names. (Top 1000 Baby Names Records, 2014)