Kainan is a distinctive boys' name in United States, ranking #3555 in 2011 with 30 recorded births. The name reached its all-time peak in 2018 with 72 births ranking #2020. Since 1996, the popularity has increased by 233.3%. In 2011, approximately 1 in every 63,300 boys born was named Kainan. FALLING Recent data shows the name is currently falling.