Kainalu is a distinctive boys' name in United States, ranking #3527 in 2008 with 31 recorded births. The name reached its all-time peak in 2003 with 32 births ranking #3022. Since 1996, the popularity has increased by 82.4%. In 2008, approximately 1 in every 65,805 boys born was named Kainalu. FALLING Recent data shows the name is currently falling.