Mackensie is a distinctive girls' name in United States, ranking #5877 in 2008 with 24 recorded births. The name reached its all-time peak in 1998 with 63 births ranking #2269. Since 1996, the popularity has decreased by 50.0%. In 2008, approximately 1 in every 78,780 girls born was named Mackensie. FALLING Recent data shows the name is currently falling.