Rileigh is a distinctive girls' name in United States, ranking #1149 in 2009 with 221 recorded births. The name reached its all-time peak in 2009 with 221 births ranking #1149. Since 1996, the popularity has increased by 481.6%. In 2009, approximately 1 in every 8,312 girls born was named Rileigh. FALLING Recent data shows the name is currently falling.