Aja is a distinctive girls' name in United States, ranking #1583 in 2008 with 144 recorded births. The name reached its all-time peak in 1996 with 246 births ranking #822. Since 1996, the popularity has decreased by 41.5%. In 2008, approximately 1 in every 13,130 girls born was named Aja. FALLING Recent data shows the name is currently falling.