Mckoy is a distinctive boys' name in United States, ranking #5939 in 2010 with 15 recorded births. This places Mckoy in the top 42% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2016 with 22 births ranking #4572. In 2010, approximately 1 in every 127,894 boys born was named Mckoy. STABLE Recent data shows the name is currently stable.