Irelyn is a distinctive girls' name in United States, ranking #2814 in 2012 with 62 recorded births. This places Irelyn in the top 14% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2008 with 176 births ranking #1370. Since 1996, the popularity has increased by 785.7%. In 2012, approximately 1 in every 28,399 girls born was named Irelyn. FALLING Recent data shows the name is currently falling.