Mckinnley is a distinctive boys' name in United States, ranking #13581 in 2017 with 5 recorded births. This places Mckinnley in the bottom 5% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2011 with 9 births ranking #8535. Since 1996, the popularity has decreased by 16.7%. In 2017, approximately 1 in every 370,063 boys born was named Mckinnley. FALLING Recent data shows the name is currently falling.