Duilio is a distinctive boys' name in United States, ranking #9857 in 2006 with 7 recorded births. This places Duilio in the bottom 30% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2005 with 16 births ranking #5095. In 2006, approximately 1 in every 293,588 boys born was named Duilio. FALLING Recent data shows the name is currently falling.