Mattias is a distinctive boys' name in United States, ranking #2882 in 2005 with 37 recorded births. The name reached its all-time peak in 2021 with 184 births ranking #1114. Since 1996, the popularity has increased by 117.6%. In 2005, approximately 1 in every 53,977 boys born was named Mattias. STABLE Recent data shows the name is currently stable.