Irelyn is a distinctive girls' name in United States, ranking #2491 in 2011 with 73 recorded births. The name reached its all-time peak in 2008 with 176 births ranking #1370. Since 1996, the popularity has increased by 942.9%. In 2011, approximately 1 in every 24,093 girls born was named Irelyn. FALLING Recent data shows the name is currently falling.