Harly is a distinctive girls' name in United States, ranking #10698 in 1999 with 8 recorded births. The name reached its all-time peak in 2004 with 14 births ranking #7974. Since 1996, the popularity has decreased by 27.3%. In 1999, approximately 1 in every 221,723 girls born was named Harly. FALLING Recent data shows the name is currently falling.