Mattias is a distinctive boys' name in United States, ranking #1473 in 2019 with 117 recorded births. The name reached its all-time peak in 2021 with 184 births ranking #1114. Since 1996, the popularity has increased by 588.2%. In 2019, approximately 1 in every 15,328 boys born was named Mattias. STABLE Recent data shows the name is currently stable.