Kainoa is a distinctive boys' name in United States, ranking #1878 in 2021 with 82 recorded births. The name reached its all-time peak in 2016 with 105 births ranking #1566. Since 1996, the popularity has increased by 74.5%. In 2021, approximately 1 in every 21,320 boys born was named Kainoa. STABLE Recent data shows the name is currently stable.