Thaddeus is a distinctive boys' name in United States, ranking #975 in 2006 with 191 recorded births. The name reached its all-time peak in 2016 with 416 births ranking #640. Since 1996, the popularity has decreased by 11.6%. In 2006, approximately 1 in every 10,760 boys born was named Thaddeus. RISING Recent data shows the name is currently rising.