Mckay is a distinctive boys' name in United States, ranking #1872 in 2004 with 66 recorded births. The name reached its all-time peak in 1996 with 84 births ranking #1312. Since 1996, the popularity has decreased by 21.4%. In 2004, approximately 1 in every 30,073 boys born was named Mckay. STABLE Recent data shows the name is currently stable.