Erwin is a distinctive boys' name in United States, ranking #1689 in 2010 with 91 recorded births. The name reached its all-time peak in 2005 with 109 births ranking #1375. Since 1996, the popularity has increased by 13.8%. In 2010, approximately 1 in every 21,081 boys born was named Erwin. STABLE Recent data shows the name is currently stable.