Kaio is a distinctive boys' name in United States, ranking #7178 in 2006 with 11 recorded births. The name reached its all-time peak in 2023 with 26 births ranking #4164. Since 1996, the popularity has increased by 22.2%. In 2006, approximately 1 in every 186,829 boys born was named Kaio. FALLING Recent data shows the name is currently falling.