Mckynna is a distinctive girls' name in United States, ranking #13619 in 2017 with 7 recorded births. This places Mckynna in the bottom 26% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2011 with 13 births ranking #8987. In 2017, approximately 1 in every 246,554 girls born was named Mckynna. FALLING Recent data shows the name is currently falling.