Irelyn is a distinctive girls' name in United States, ranking #2900 in 2007 with 62 recorded births. The name reached its all-time peak in 2008 with 176 births ranking #1370. Since 1996, the popularity has increased by 785.7%. In 2007, approximately 1 in every 31,007 girls born was named Irelyn. FALLING Recent data shows the name is currently falling.