Mackensi is a distinctive girls' name in United States, ranking #8838 in 2003 with 12 recorded births. The name reached its all-time peak in 2000 with 13 births ranking #7846. Since 1996, the popularity has increased by 100.0%. In 2003, approximately 1 in every 152,254 girls born was named Mackensi. FALLING Recent data shows the name is currently falling.