Thaddeus is a distinctive boys' name in United States, ranking #705 in 2015 with 358 recorded births. The name reached its all-time peak in 2016 with 416 births ranking #640. Since 1996, the popularity has increased by 65.7%. In 2015, approximately 1 in every 5,353 boys born was named Thaddeus. RISING Recent data shows the name is currently rising.