Irelyn is a distinctive girls' name in United States, ranking #5977 in 2002 with 19 recorded births. The name reached its all-time peak in 2008 with 176 births ranking #1370. Since 1996, the popularity has increased by 171.4%. In 2002, approximately 1 in every 94,569 girls born was named Irelyn. FALLING Recent data shows the name is currently falling.