Mackinley is a distinctive boys' name in United States, ranking #8659 in 2023 with 9 recorded births. The name reached its all-time peak in 1999 with 23 births ranking #3447. Since 1996, the popularity has decreased by 43.8%. In 2023, approximately 1 in every 189,839 boys born was named Mackinley. RISING Recent data shows the name is currently rising.