Allyn is a distinctive girls' name in United States, ranking #6711 in 2002 with 16 recorded births. The name reached its all-time peak in 1999 with 31 births ranking #3810. Since 1996, the popularity has decreased by 11.1%. In 2002, approximately 1 in every 112,301 girls born was named Allyn. FALLING Recent data shows the name is currently falling.