Leonidus is a distinctive boys' name in United States, ranking #13589 in 2007 with 5 recorded births. This places Leonidus in the bottom 6% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2008 with 16 births ranking #5670. In 2007, approximately 1 in every 415,047 boys born was named Leonidus. STABLE Recent data shows the name is currently stable.