Ally is a distinctive girls' name in United States, ranking #1036 in 1997 with 185 recorded births. The name reached its all-time peak in 1998 with 636 births ranking #417. Since 1996, the popularity has increased by 134.2%. In 1997, approximately 1 in every 9,409 girls born was named Ally. FALLING Recent data shows the name is currently falling.