Kainan is a distinctive boys' name in United States, ranking #5867 in 1997 with 10 recorded births. The name reached its all-time peak in 2018 with 72 births ranking #2020. Since 1996, the popularity has increased by 11.1%. In 1997, approximately 1 in every 188,509 boys born was named Kainan. FALLING Recent data shows the name is currently falling.