Allen is a moderately popular boys' name in United States, ranking #463 in 2020 with 637 recorded births. The name reached its all-time peak in 1996 with 1,468 births ranking #212. Since 1996, the popularity has decreased by 56.6%. In 2020, approximately 1 in every 2,708 boys born was named Allen. FALLING Recent data shows the name is currently falling.