Mcclain is a distinctive boys' name in United States, ranking #4934 in 1999 with 14 recorded births. The name reached its all-time peak in 2022 with 21 births ranking #4799. Since 1996, the popularity has increased by 40.0%. In 1999, approximately 1 in every 137,149 boys born was named Mcclain. STABLE Recent data shows the name is currently stable.