Mcclain is a distinctive boys' name in United States, ranking #9414 in 2012 with 8 recorded births. The name reached its all-time peak in 2022 with 21 births ranking #4799. Since 1996, the popularity has decreased by 20.0%. In 2012, approximately 1 in every 237,078 boys born was named Mcclain. STABLE Recent data shows the name is currently stable.