Mackensie is a distinctive girls' name in United States, ranking #14445 in 2020 with 6 recorded births. The name reached its all-time peak in 1998 with 63 births ranking #2269. Since 1996, the popularity has decreased by 87.5%. In 2020, approximately 1 in every 269,252 girls born was named Mackensie. FALLING Recent data shows the name is currently falling.