Mackenna is a distinctive girls' name in United States, ranking #1487 in 1999 with 116 recorded births. The name reached its all-time peak in 2008 with 187 births ranking #1322. Since 1996, the popularity has increased by 17.2%. In 1999, approximately 1 in every 15,291 girls born was named Mackenna. FALLING Recent data shows the name is currently falling.