Mackenna is a distinctive girls' name in United States, ranking #2201 in 2021 with 85 recorded births. The name reached its all-time peak in 2008 with 187 births ranking #1322. Since 1996, the popularity has decreased by 14.1%. In 2021, approximately 1 in every 19,291 girls born was named Mackenna. FALLING Recent data shows the name is currently falling.