Reiley is a distinctive girls' name in United States, ranking #9309 in 2016 with 12 recorded births. The name reached its all-time peak in 1998 with 37 births ranking #3341. Since 1996, the popularity has decreased by 42.9%. In 2016, approximately 1 in every 147,624 girls born was named Reiley. FALLING Recent data shows the name is currently falling.