Kai is a distinctive girls' name in United States, ranking #940 in 2023 with 282 recorded births. The name reached its all-time peak in 2021 with 371 births ranking #769. Since 1996, the popularity has increased by 224.1%. In 2023, approximately 1 in every 5,683 girls born was named Kai. FALLING Recent data shows the name is currently falling.