Mckinsey is a distinctive girls' name in United States, ranking #4880 in 2011 with 29 recorded births. The name reached its all-time peak in 2006 with 55 births ranking #3075. Since 1996, the popularity has decreased by 31.0%. In 2011, approximately 1 in every 60,648 girls born was named Mckinsey. FALLING Recent data shows the name is currently falling.