Pio is a distinctive boys' name in United States, ranking #14096 in 2008 with 5 recorded births. This places Pio in the bottom 4% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2025 with 23 births ranking #4499. Since 1996, the popularity has decreased by 16.7%. In 2008, approximately 1 in every 407,989 boys born was named Pio. RISING Recent data shows the name is currently rising.