Allen is a distinctive boys' name in United States, ranking #525 in 2021 with 558 recorded births. The name reached its all-time peak in 1996 with 1,468 births ranking #212. Since 1996, the popularity has decreased by 62.0%. In 2021, approximately 1 in every 3,133 boys born was named Allen. STABLE Recent data shows the name is currently stable.