Erwin is a distinctive boys' name in United States, ranking #1514 in 2001 with 80 recorded births. This places Erwin in the top 12% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2005 with 109 births ranking #1375. In 2001, approximately 1 in every 24,285 boys born was named Erwin. STABLE Recent data shows the name is currently stable.