Kainalu is a distinctive boys' name in United States, ranking #3573 in 2005 with 27 recorded births. The name reached its all-time peak in 2003 with 32 births ranking #3022. Since 1996, the popularity has increased by 58.8%. In 2005, approximately 1 in every 73,968 boys born was named Kainalu. FALLING Recent data shows the name is currently falling.