Kai is a popular boys' name in United States, ranking #76 in 2024 with 4,276 recorded births. The name reached its all-time peak in 2022 with 5,366 births ranking #59. Since 1996, the popularity has increased by 1,339.7%. In 2024, approximately 1 in every 401 boys born was named Kai. FALLING Recent data shows the name is currently falling.