Mackenna is a distinctive girls' name in United States, ranking #2141 in 2018 with 89 recorded births. The name reached its all-time peak in 2008 with 187 births ranking #1322. Since 1996, the popularity has decreased by 10.1%. In 2018, approximately 1 in every 19,106 girls born was named Mackenna. FALLING Recent data shows the name is currently falling.