Aja is a distinctive girls' name in United States, ranking #1470 in 2011 with 152 recorded births. The name reached its all-time peak in 1996 with 246 births ranking #822. Since 1996, the popularity has decreased by 38.2%. In 2011, approximately 1 in every 11,571 girls born was named Aja. FALLING Recent data shows the name is currently falling.