Marius is a distinctive boys' name in England & Wales, ranking #1466 in 2025 with 18 recorded births. The name reached its all-time peak in 2019 with 45 births ranking #731. Since 1996, the popularity has increased by 200.0%. In 2025, approximately 1 in every 15,108 boys born was named Marius. STABLE Recent data shows the name is currently stable.