Mckinley is a distinctive boys' name in United States, ranking #1991 in 2014 with 72 recorded births. The name reached its all-time peak in 2000 with 111 births ranking #1218. Since 1996, the popularity has decreased by 16.3%. In 2014, approximately 1 in every 26,673 boys born was named Mckinley. FALLING Recent data shows the name is currently falling.