Mackinley is a distinctive girls' name in United States, ranking #5110 in 2022 with 26 recorded births. The name reached its all-time peak in 2018 with 28 births ranking #4843. Since 1996, the popularity has increased by 271.4%. In 2022, approximately 1 in every 63,029 girls born was named Mackinley. FALLING Recent data shows the name is currently falling.