Mckinsey is a distinctive girls' name in United States, ranking #2647 in 1997 with 48 recorded births. The name reached its all-time peak in 2006 with 55 births ranking #3075. Since 1996, the popularity has increased by 14.3%. In 1997, approximately 1 in every 36,264 girls born was named Mckinsey. FALLING Recent data shows the name is currently falling.