Mclain is a distinctive boys' name in United States, ranking #5528 in 1997 with 11 recorded births. The name reached its all-time peak in 2025 with 14 births ranking #6328. Since 1996, the popularity has increased by 22.2%. In 1997, approximately 1 in every 171,372 boys born was named Mclain. RISING Recent data shows the name is currently rising.