Mckenna is a moderately popular girls' name in United States, ranking #410 in 2025 with 758 recorded births. The name reached its all-time peak in 2002 with 1,795 births ranking #177. Since 1996, the popularity has decreased by 38.4%. In 2025, approximately 1 in every 2,120 girls born was named Mckenna. FALLING Recent data shows the name is currently falling.