Kainan is a distinctive boys' name in United States, ranking #4158 in 2006 with 23 recorded births. The name reached its all-time peak in 2018 with 72 births ranking #2020. Since 1996, the popularity has increased by 155.6%. In 2006, approximately 1 in every 89,353 boys born was named Kainan. FALLING Recent data shows the name is currently falling.