Mackensie is a distinctive girls' name in United States, ranking #7839 in 2016 with 15 recorded births. The name reached its all-time peak in 1998 with 63 births ranking #2269. Since 1996, the popularity has decreased by 68.8%. In 2016, approximately 1 in every 118,099 girls born was named Mackensie. FALLING Recent data shows the name is currently falling.