Kainan is a distinctive boys' name in United States, ranking #5442 in 2000 with 13 recorded births. The name reached its all-time peak in 2018 with 72 births ranking #2020. Since 1996, the popularity has increased by 44.4%. In 2000, approximately 1 in every 151,072 boys born was named Kainan. FALLING Recent data shows the name is currently falling.