Erwin is a distinctive boys' name in United States, ranking #1993 in 2012 with 71 recorded births. The name reached its all-time peak in 2005 with 109 births ranking #1375. Since 1996, the popularity has decreased by 11.3%. In 2012, approximately 1 in every 26,713 boys born was named Erwin. STABLE Recent data shows the name is currently stable.