Hartley is a distinctive girls' name in United States, ranking #1601 in 2018 with 134 recorded births. The name reached its all-time peak in 2025 with 148 births ranking #1453. Since 1996, the popularity has increased by 1,575.0%. In 2018, approximately 1 in every 12,690 girls born was named Hartley. RISING Recent data shows the name is currently rising.