Mackenna is a distinctive girls' name in United States, ranking #2431 in 2020 with 72 recorded births. The name reached its all-time peak in 2008 with 187 births ranking #1322. Since 1996, the popularity has decreased by 27.3%. In 2020, approximately 1 in every 22,438 girls born was named Mackenna. FALLING Recent data shows the name is currently falling.