Mckaylah is a distinctive girls' name in United States, ranking #9677 in 2004 with 11 recorded births. The name reached its all-time peak in 2005 with 20 births ranking #6169. Since 1996, the popularity has increased by 37.5%. In 2004, approximately 1 in every 166,920 girls born was named Mckaylah. FALLING Recent data shows the name is currently falling.