Kainen is a distinctive boys' name in United States, ranking #3924 in 1996 with 17 recorded births. This places Kainen in the top 37% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2018 with 100 births ranking #1634. In 1996, approximately 1 in every 111,425 boys born was named Kainen. FALLING Recent data shows the name is currently falling.