Mackinley is a distinctive boys' name in United States, ranking #5346 in 2011 with 17 recorded births. This places Mackinley in the top 37% 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 2011, approximately 1 in every 111,705 boys born was named Mackinley. RISING Recent data shows the name is currently rising.