Ally is a distinctive girls' name in United States, ranking #582 in 2002 with 444 recorded births. The name reached its all-time peak in 1998 with 636 births ranking #417. Since 1996, the popularity has increased by 462.0%. In 2002, approximately 1 in every 4,047 girls born was named Ally. FALLING Recent data shows the name is currently falling.