Aja is a distinctive girls' name in United States, ranking #1590 in 2010 with 137 recorded births. The name reached its all-time peak in 1996 with 246 births ranking #822. Since 1996, the popularity has decreased by 44.3%. In 2010, approximately 1 in every 12,973 girls born was named Aja. FALLING Recent data shows the name is currently falling.