Reiley is a distinctive girls' name in United States, ranking #5671 in 2006 with 24 recorded births. The name reached its all-time peak in 1998 with 37 births ranking #3341. Since 1996, the popularity has increased by 14.3%. In 2006, approximately 1 in every 79,211 girls born was named Reiley. FALLING Recent data shows the name is currently falling.