Harley is a moderately popular girls' name in United States, ranking #330 in 2022 with 980 recorded births. The name reached its all-time peak in 2017 with 1,531 births ranking #202. Since 1996, the popularity has increased by 34.2%. In 2022, approximately 1 in every 1,672 girls born was named Harley. FALLING Recent data shows the name is currently falling.