Mclain is a distinctive boys' name in United States, ranking #10643 in 2008 with 7 recorded births. The name reached its all-time peak in 2025 with 14 births ranking #6328. Since 1996, the popularity has decreased by 22.2%. In 2008, approximately 1 in every 291,421 boys born was named Mclain. RISING Recent data shows the name is currently rising.