Mckynzie is a distinctive girls' name in United States, ranking #4209 in 2016 with 35 recorded births. The name reached its all-time peak in 2012 with 45 births ranking #3564. Since 1996, the popularity has increased by 169.2%. In 2016, approximately 1 in every 50,614 girls born was named Mckynzie. FALLING Recent data shows the name is currently falling.