Mackensie is a distinctive girls' name in United States, ranking #5542 in 2005 with 23 recorded births. The name reached its all-time peak in 1998 with 63 births ranking #2269. Since 1996, the popularity has decreased by 52.1%. In 2005, approximately 1 in every 80,335 girls born was named Mackensie. FALLING Recent data shows the name is currently falling.