Mackenna is a distinctive girls' name in United States, ranking #1588 in 2009 with 142 recorded births. The name reached its all-time peak in 2008 with 187 births ranking #1322. Since 1996, the popularity has increased by 43.4%. In 2009, approximately 1 in every 12,936 girls born was named Mackenna. FALLING Recent data shows the name is currently falling.