Mackenna is a distinctive girls' name in United States, ranking #1515 in 2012 with 147 recorded births. The name reached its all-time peak in 2008 with 187 births ranking #1322. Since 1996, the popularity has increased by 48.5%. In 2012, approximately 1 in every 11,978 girls born was named Mackenna. FALLING Recent data shows the name is currently falling.