Mattias is a distinctive boys' name in United States, ranking #1562 in 2015 with 104 recorded births. The name reached its all-time peak in 2021 with 184 births ranking #1114. Since 1996, the popularity has increased by 511.8%. In 2015, approximately 1 in every 18,426 boys born was named Mattias. STABLE Recent data shows the name is currently stable.