Mckay is a distinctive boys' name in United States, ranking #1615 in 1998 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 1998, approximately 1 in every 29,405 boys born was named Mckay. STABLE Recent data shows the name is currently stable.