Kainen is a distinctive boys' name in United States, ranking #3775 in 2005 with 25 recorded births. This places Kainen in the top 28% 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. Since 1996, the popularity has increased by 47.1%. In 2005, approximately 1 in every 79,886 boys born was named Kainen. FALLING Recent data shows the name is currently falling.