Mackinley is a distinctive girls' name in United States, ranking #4843 in 2018 with 28 recorded births. This places Mackinley in the top 27% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2018 with 28 births ranking #4843. Since 1996, the popularity has increased by 300.0%. In 2018, approximately 1 in every 60,729 girls born was named Mackinley. FALLING Recent data shows the name is currently falling.