Mackenna is a distinctive girls' name in United States, ranking #2394 in 2017 with 76 recorded births. The name reached its all-time peak in 2008 with 187 births ranking #1322. Since 1996, the popularity has decreased by 23.2%. In 2017, approximately 1 in every 22,709 girls born was named Mackenna. FALLING Recent data shows the name is currently falling.