Mcclain is a distinctive boys' name in United States, ranking #5900 in 2001 with 12 recorded births. The name reached its all-time peak in 2022 with 21 births ranking #4799. Since 1996, the popularity has increased by 20.0%. In 2001, approximately 1 in every 161,903 boys born was named Mcclain. STABLE Recent data shows the name is currently stable.