Cai is a distinctive boys' name in England & Wales, ranking #568 in 2020 with 64 recorded births. The name reached its all-time peak in 2006 with 192 births ranking #214. Since 1996, the popularity has increased by 39.1%. In 2020, approximately 1 in every 4,515 boys born was named Cai. RISING Recent data shows the name is currently rising.