Cai is a distinctive boys' name in United States, ranking #1849 in 2023 with 86 recorded births. The name reached its all-time peak in 2022 with 108 births ranking #1612. Since 1996, the popularity has increased by 1,333.3%. In 2023, approximately 1 in every 19,867 boys born was named Cai. FALLING Recent data shows the name is currently falling.