Hartley is a distinctive boys' name in United States, ranking #4909 in 2010 with 19 recorded births. The name reached its all-time peak in 2018 with 30 births ranking #3644. Since 1996, the popularity has increased by 137.5%. In 2010, approximately 1 in every 100,969 boys born was named Hartley. FALLING Recent data shows the name is currently falling.