Mckinley is a distinctive boys' name in United States, ranking #2201 in 2008 with 61 recorded births. The name reached its all-time peak in 2000 with 111 births ranking #1218. Since 1996, the popularity has decreased by 29.1%. In 2008, approximately 1 in every 33,442 boys born was named Mckinley. FALLING Recent data shows the name is currently falling.