Mckay is a distinctive boys' name in United States, ranking #1949 in 2010 with 72 recorded births. The name reached its all-time peak in 1996 with 84 births ranking #1312. Since 1996, the popularity has decreased by 14.3%. In 2010, approximately 1 in every 26,645 boys born was named Mckay. STABLE Recent data shows the name is currently stable.