Thaddeus is a distinctive boys' name in United States, ranking #661 in 2017 with 387 recorded births. The name reached its all-time peak in 2016 with 416 births ranking #640. Since 1996, the popularity has increased by 79.2%. In 2017, approximately 1 in every 4,781 boys born was named Thaddeus. RISING Recent data shows the name is currently rising.