Magnus is a distinctive boys' name in United States, ranking #765 in 2025 with 337 recorded births. The name reached its all-time peak in 2021 with 354 births ranking #730. Since 1996, the popularity has increased by 1,304.2%. In 2025, approximately 1 in every 5,068 boys born was named Magnus. STABLE Recent data shows the name is currently stable.