Thaddeus is a distinctive boys' name in United States, ranking #817 in 2021 with 295 recorded births. The name reached its all-time peak in 2016 with 416 births ranking #640. Since 1996, the popularity has increased by 36.6%. In 2021, approximately 1 in every 5,926 boys born was named Thaddeus. RISING Recent data shows the name is currently rising.