Ally is a distinctive girls' name in United States, ranking #606 in 2013 with 463 recorded births. The name reached its all-time peak in 1998 with 636 births ranking #417. Since 1996, the popularity has increased by 486.1%. In 2013, approximately 1 in every 3,789 girls born was named Ally. FALLING Recent data shows the name is currently falling.