Mackenzy is a distinctive girls' name in United States, ranking #4197 in 2015 with 35 recorded births. The name reached its all-time peak in 2001 with 71 births ranking #2277. Since 1996, the popularity has increased by 20.7%. In 2015, approximately 1 in every 50,990 girls born was named Mackenzy. FALLING Recent data shows the name is currently falling.