Mackensie is a distinctive girls' name in United States, ranking #3311 in 2002 with 42 recorded births. The name reached its all-time peak in 1998 with 63 births ranking #2269. Since 1996, the popularity has decreased by 12.5%. In 2002, approximately 1 in every 42,781 girls born was named Mackensie. FALLING Recent data shows the name is currently falling.