Cai is a distinctive boys' name in United States, ranking #3608 in 2007 with 29 recorded births. This places Cai in the top 25% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2022 with 108 births ranking #1612. Since 1996, the popularity has increased by 383.3%. In 2007, approximately 1 in every 71,560 boys born was named Cai. FALLING Recent data shows the name is currently falling.