Mckay is a distinctive boys' name in United States, ranking #1736 in 2000 with 65 recorded births. The name reached its all-time peak in 1996 with 84 births ranking #1312. Since 1996, the popularity has decreased by 22.6%. In 2000, approximately 1 in every 30,214 boys born was named Mckay. STABLE Recent data shows the name is currently stable.