Mcclain is a distinctive boys' name in United States, ranking #6964 in 2017 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 2017, approximately 1 in every 154,193 boys born was named Mcclain. STABLE Recent data shows the name is currently stable.