Mattias is a distinctive boys' name in United States, ranking #1233 in 2025 with 163 recorded births. The name reached its all-time peak in 2021 with 184 births ranking #1114. Since 1996, the popularity has increased by 858.8%. In 2025, approximately 1 in every 10,479 boys born was named Mattias. STABLE Recent data shows the name is currently stable.