Mckaylah is a distinctive girls' name in United States, ranking #7457 in 2003 with 15 recorded births. The name reached its all-time peak in 2005 with 20 births ranking #6169. Since 1996, the popularity has increased by 87.5%. In 2003, approximately 1 in every 121,803 girls born was named Mckaylah. FALLING Recent data shows the name is currently falling.