Mcclain is a distinctive boys' name in United States, ranking #6586 in 2016 with 13 recorded births. The name reached its all-time peak in 2022 with 21 births ranking #4799. Since 1996, the popularity has increased by 30.0%. In 2016, approximately 1 in every 145,939 boys born was named Mcclain. STABLE Recent data shows the name is currently stable.