Kainan is a distinctive boys' name in United States, ranking #5492 in 1999 with 12 recorded births. The name reached its all-time peak in 2018 with 72 births ranking #2020. Since 1996, the popularity has increased by 33.3%. In 1999, approximately 1 in every 160,007 boys born was named Kainan. FALLING Recent data shows the name is currently falling.