Mattias is a distinctive boys' name in United States, ranking #3037 in 2001 with 30 recorded births. The name reached its all-time peak in 2021 with 184 births ranking #1114. Since 1996, the popularity has increased by 76.5%. In 2001, approximately 1 in every 64,761 boys born was named Mattias. STABLE Recent data shows the name is currently stable.