Kainalu is a distinctive boys' name in United States, ranking #3022 in 2003 with 32 recorded births. The name reached its all-time peak in 2003 with 32 births ranking #3022. Since 1996, the popularity has increased by 88.2%. In 2003, approximately 1 in every 61,727 boys born was named Kainalu. FALLING Recent data shows the name is currently falling.