Thaddeus is a distinctive boys' name in United States, ranking #907 in 2004 with 189 recorded births. The name reached its all-time peak in 2016 with 416 births ranking #640. Since 1996, the popularity has decreased by 12.5%. In 2004, approximately 1 in every 10,502 boys born was named Thaddeus. RISING Recent data shows the name is currently rising.