Mckaylee is a distinctive girls' name in United States, ranking #5357 in 1999 with 20 recorded births. The name reached its all-time peak in 2007 with 31 births ranking #4766. Since 1996, the popularity has increased by 11.1%. In 1999, approximately 1 in every 88,689 girls born was named Mckaylee. FALLING Recent data shows the name is currently falling.