Reiley is a distinctive girls' name in United States, ranking #8943 in 2013 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 2013, approximately 1 in every 134,955 girls born was named Reiley. FALLING Recent data shows the name is currently falling.