Reiley is a distinctive girls' name in United States, ranking #8682 in 2017 with 13 recorded births. The name reached its all-time peak in 1998 with 37 births ranking #3341. Since 1996, the popularity has decreased by 38.1%. In 2017, approximately 1 in every 132,760 girls born was named Reiley. FALLING Recent data shows the name is currently falling.