Mackensi is a distinctive girls' name in United States, ranking #19370 in 2007 with 5 recorded births. The name reached its all-time peak in 2000 with 13 births ranking #7846. Since 1996, the popularity has decreased by 16.7%. In 2007, approximately 1 in every 384,490 girls born was named Mackensi. FALLING Recent data shows the name is currently falling.