Cylus is a distinctive boys' name in United States, ranking #3387 in 2018 with 33 recorded births. This places Cylus in the top 24% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2012 with 77 births ranking #1884. In 2018, approximately 1 in every 55,014 boys born was named Cylus. FALLING Recent data shows the name is currently falling.