Erwin is a distinctive boys' name in United States, ranking #2556 in 2018 with 50 recorded births. The name reached its all-time peak in 2005 with 109 births ranking #1375. Since 1996, the popularity has decreased by 37.5%. In 2018, approximately 1 in every 36,309 boys born was named Erwin. STABLE Recent data shows the name is currently stable.