Cai is a distinctive boys' name in England & Wales, ranking #656 in 2022 with 53 recorded births. The name reached its all-time peak in 2006 with 192 births ranking #214. Since 1996, the popularity has increased by 15.2%. In 2022, approximately 1 in every 5,366 boys born was named Cai. RISING Recent data shows the name is currently rising.