Mckinsey is a distinctive girls' name in United States, ranking #6360 in 2014 with 20 recorded births. The name reached its all-time peak in 2006 with 55 births ranking #3075. Since 1996, the popularity has decreased by 52.4%. In 2014, approximately 1 in every 89,297 girls born was named Mckinsey. FALLING Recent data shows the name is currently falling.