Allyson is a moderately popular girls' name in United States, ranking #363 in 2015 with 908 recorded births. The name reached its all-time peak in 1998 with 1,651 births ranking #186. Since 1996, the popularity has decreased by 25.7%. In 2015, approximately 1 in every 1,965 girls born was named Allyson. FALLING Recent data shows the name is currently falling.