Mackenna is a distinctive girls' name in United States, ranking #1512 in 2004 with 134 recorded births. The name reached its all-time peak in 2008 with 187 births ranking #1322. Since 1996, the popularity has increased by 35.4%. In 2004, approximately 1 in every 13,702 girls born was named Mackenna. FALLING Recent data shows the name is currently falling.