Caio is a distinctive boys' name in England & Wales, ranking #1111 in 2020 with 24 recorded births. This places Caio in the top 19% of ranked UK boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2022 with 43 births ranking #758. Since 1996, the popularity has increased by 380.0%. In 2020, approximately 1 in every 12,041 boys born was named Caio. STABLE Recent data shows the name is currently stable.