Reiley is a distinctive girls' name in United States, ranking #3869 in 1999 with 31 recorded births. This places Reiley in the top 23% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1998 with 37 births ranking #3341. Since 1996, the popularity has increased by 47.6%. In 1999, approximately 1 in every 57,219 girls born was named Reiley. FALLING Recent data shows the name is currently falling.