Allen is a moderately popular boys' name in United States, ranking #250 in 2003 with 1,318 recorded births. The name reached its all-time peak in 1996 with 1,468 births ranking #212. Since 1996, the popularity has decreased by 10.2%. In 2003, approximately 1 in every 1,499 boys born was named Allen. FALLING Recent data shows the name is currently falling.