Mckay is a distinctive boys' name in United States, ranking #1654 in 2001 with 71 recorded births. The name reached its all-time peak in 1996 with 84 births ranking #1312. Since 1996, the popularity has decreased by 15.5%. In 2001, approximately 1 in every 27,364 boys born was named Mckay. STABLE Recent data shows the name is currently stable.