Mckayla is a moderately popular girls' name in United States, ranking #370 in 1998 with 769 recorded births. The name reached its all-time peak in 1998 with 769 births ranking #370. Since 1996, the popularity has increased by 39.3%. In 1998, approximately 1 in every 2,298 girls born was named Mckayla. FALLING Recent data shows the name is currently falling.