Kaio is a distinctive boys' name in United States, ranking #4972 in 2014 with 19 recorded births. The name reached its all-time peak in 2023 with 26 births ranking #4164. Since 1996, the popularity has increased by 111.1%. In 2014, approximately 1 in every 101,076 boys born was named Kaio. FALLING Recent data shows the name is currently falling.