Hartley is a distinctive girls' name in United States, ranking #6590 in 2004 with 18 recorded births. The name reached its all-time peak in 2025 with 148 births ranking #1453. Since 1996, the popularity has increased by 125.0%. In 2004, approximately 1 in every 102,007 girls born was named Hartley. RISING Recent data shows the name is currently rising.