Allan is a moderately popular boys' name in United States, ranking #412 in 2003 with 625 recorded births. The name reached its all-time peak in 2003 with 625 births ranking #412. Since 1996, the popularity has increased by 39.2%. In 2003, approximately 1 in every 3,160 boys born was named Allan. FALLING Recent data shows the name is currently falling.