Hailly is a distinctive girls' name in United States, ranking #14099 in 2006 with 7 recorded births. The name reached its all-time peak in 2004 with 11 births ranking #9474. Since 1996, the popularity has increased by 40.0%. In 2006, approximately 1 in every 271,581 girls born was named Hailly. FALLING Recent data shows the name is currently falling.