Erwin is a distinctive boys' name in United States, ranking #2402 in 2025 with 57 recorded births. The name reached its all-time peak in 2005 with 109 births ranking #1375. Since 1996, the popularity has decreased by 28.8%. In 2025, approximately 1 in every 29,966 boys born was named Erwin. STABLE Recent data shows the name is currently stable.