Cai is a distinctive boys' name in United States, ranking #2361 in 2012 with 54 recorded births. The name reached its all-time peak in 2022 with 108 births ranking #1612. Since 1996, the popularity has increased by 800.0%. In 2012, approximately 1 in every 35,123 boys born was named Cai. FALLING Recent data shows the name is currently falling.