Mackinley is a distinctive boys' name in United States, ranking #4814 in 2001 with 16 recorded births. This places Mackinley in the top 39% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1999 with 23 births ranking #3447. In 2001, approximately 1 in every 121,427 boys born was named Mackinley. RISING Recent data shows the name is currently rising.