Mckenna is a moderately popular girls' name in United States, ranking #318 in 2021 with 1,024 recorded births. The name reached its all-time peak in 2002 with 1,795 births ranking #177. Since 1996, the popularity has decreased by 16.7%. In 2021, approximately 1 in every 1,601 girls born was named Mckenna. FALLING Recent data shows the name is currently falling.