Hailley is a distinctive girls' name in United States, ranking #4923 in 1999 with 22 recorded births. The name reached its all-time peak in 2000 with 36 births ranking #3611. Since 1996, the popularity has increased by 22.2%. In 1999, approximately 1 in every 80,626 girls born was named Hailley. FALLING Recent data shows the name is currently falling.