Rilya is a distinctive girls' name in United States, ranking #14299 in 2013 with 7 recorded births. This places Rilya in the bottom 26% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2004 with 9 births ranking #11430. In 2013, approximately 1 in every 250,630 girls born was named Rilya. FALLING Recent data shows the name is currently falling.