Allen is a distinctive boys' name in United States, ranking #578 in 2025 with 507 recorded births. The name reached its all-time peak in 1996 with 1,468 births ranking #212. Since 1996, the popularity has decreased by 65.5%. In 2025, approximately 1 in every 3,369 boys born was named Allen. FALLING Recent data shows the name is currently falling.