Erwin is a distinctive boys' name in United States, ranking #1413 in 2003 with 94 recorded births. The name reached its all-time peak in 2005 with 109 births ranking #1375. Since 1996, the popularity has increased by 17.5%. In 2003, approximately 1 in every 21,014 boys born was named Erwin. STABLE Recent data shows the name is currently stable.