Maclain is a distinctive boys' name in United States, ranking #7075 in 2022 with 12 recorded births. The name reached its all-time peak in 2007 with 22 births ranking #4453. Since 1996, the popularity has decreased by 14.3%. In 2022, approximately 1 in every 145,364 boys born was named Maclain. FALLING Recent data shows the name is currently falling.