Allyn is a distinctive girls' name in United States, ranking #5263 in 2012 with 26 recorded births. The name reached its all-time peak in 1999 with 31 births ranking #3810. Since 1996, the popularity has increased by 44.4%. In 2012, approximately 1 in every 67,721 girls born was named Allyn. FALLING Recent data shows the name is currently falling.