Mcclain is a distinctive boys' name in United States, ranking #4982 in 2025 with 20 recorded births. The name reached its all-time peak in 2022 with 21 births ranking #4799. Since 1996, the popularity has increased by 100.0%. In 2025, approximately 1 in every 85,404 boys born was named Mcclain. STABLE Recent data shows the name is currently stable.