Thaddeus is a distinctive boys' name in United States, ranking #785 in 2020 with 297 recorded births. The name reached its all-time peak in 2016 with 416 births ranking #640. Since 1996, the popularity has increased by 37.5%. In 2020, approximately 1 in every 5,808 boys born was named Thaddeus. RISING Recent data shows the name is currently rising.