Mcclain is a distinctive boys' name in United States, ranking #6008 in 2019 with 15 recorded births. The name reached its all-time peak in 2022 with 21 births ranking #4799. Since 1996, the popularity has increased by 50.0%. In 2019, approximately 1 in every 119,557 boys born was named Mcclain. STABLE Recent data shows the name is currently stable.