Thaddeus is a distinctive boys' name in United States, ranking #742 in 2019 with 325 recorded births. The name reached its all-time peak in 2016 with 416 births ranking #640. Since 1996, the popularity has increased by 50.5%. In 2019, approximately 1 in every 5,518 boys born was named Thaddeus. RISING Recent data shows the name is currently rising.