Mackenna is a distinctive girls' name in United States, ranking #1333 in 2010 with 177 recorded births. The name reached its all-time peak in 2008 with 187 births ranking #1322. Since 1996, the popularity has increased by 78.8%. In 2010, approximately 1 in every 10,041 girls born was named Mackenna. FALLING Recent data shows the name is currently falling.