Reilley is a distinctive girls' name in United States, ranking #14286 in 2013 with 7 recorded births. The name reached its all-time peak in 2004 with 17 births ranking #7027. Since 1996, the popularity has increased by 40.0%. In 2013, approximately 1 in every 250,630 girls born was named Reilley. RISING Recent data shows the name is currently rising.