Ein is a distinctive boys' name in United States, ranking #6343 in 2005 with 12 recorded births. This places Ein in the top 47% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2006 with 16 births ranking #5375. In 2005, approximately 1 in every 166,429 boys born was named Ein. FALLING Recent data shows the name is currently falling.