Erwin is a distinctive boys' name in United States, ranking #1407 in 2004 with 101 recorded births. The name reached its all-time peak in 2005 with 109 births ranking #1375. Since 1996, the popularity has increased by 26.3%. In 2004, approximately 1 in every 19,652 boys born was named Erwin. STABLE Recent data shows the name is currently stable.