Mcclain is a distinctive boys' name in United States, ranking #11785 in 2011 with 6 recorded births. The name reached its all-time peak in 2022 with 21 births ranking #4799. Since 1996, the popularity has decreased by 40.0%. In 2011, approximately 1 in every 316,498 boys born was named Mcclain. STABLE Recent data shows the name is currently stable.