Allen is a moderately popular boys' name in United States, ranking #310 in 2009 with 1,038 recorded births. The name reached its all-time peak in 1996 with 1,468 births ranking #212. Since 1996, the popularity has decreased by 29.3%. In 2009, approximately 1 in every 1,911 boys born was named Allen. FALLING Recent data shows the name is currently falling.