Mckinsey is a distinctive girls' name in United States, ranking #2907 in 2001 with 50 recorded births. The name reached its all-time peak in 2006 with 55 births ranking #3075. Since 1996, the popularity has increased by 19.0%. In 2001, approximately 1 in every 36,011 girls born was named Mckinsey. FALLING Recent data shows the name is currently falling.