Hailley is a distinctive girls' name in United States, ranking #8409 in 2010 with 14 recorded births. The name reached its all-time peak in 2000 with 36 births ranking #3611. Since 1996, the popularity has decreased by 22.2%. In 2010, approximately 1 in every 126,952 girls born was named Hailley. FALLING Recent data shows the name is currently falling.