Allyn is a distinctive girls' name in United States, ranking #5156 in 2000 with 22 recorded births. This places Allyn in the top 29% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1999 with 31 births ranking #3810. Since 1996, the popularity has increased by 22.2%. In 2000, approximately 1 in every 82,544 girls born was named Allyn. FALLING Recent data shows the name is currently falling.