Pius is a distinctive boys' name in United States, ranking #12102 in 2009 with 6 recorded births. This places Pius in the bottom 17% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2022 with 12 births ranking #7135. In 2009, approximately 1 in every 330,551 boys born was named Pius. FALLING Recent data shows the name is currently falling.