Caio is a distinctive boys' name in United States, ranking #3695 in 2024 with 30 recorded births. This places Caio in the top 26% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2023 with 40 births ranking #3063. Since 1996, the popularity has increased by 328.6%. In 2024, approximately 1 in every 57,177 boys born was named Caio. FALLING Recent data shows the name is currently falling.