Dilyn is a distinctive girls' name in United States, ranking #12572 in 2002 with 7 recorded births. This places Dilyn in the bottom 30% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2003 with 24 births ranking #5131. In 2002, approximately 1 in every 256,689 girls born was named Dilyn. RISING Recent data shows the name is currently rising.