Alejo is a distinctive boys' name in United States, ranking #8180 in 2012 with 9 recorded births. The name reached its all-time peak in 2025 with 22 births ranking #4544. Since 1996, the popularity has decreased by 47.1%. In 2012, approximately 1 in every 210,736 boys born was named Alejo. RISING Recent data shows the name is currently rising.