Aja is a distinctive girls' name in United States, ranking #2240 in 2018 with 82 recorded births. The name reached its all-time peak in 1996 with 246 births ranking #822. Since 1996, the popularity has decreased by 66.7%. In 2018, approximately 1 in every 20,737 girls born was named Aja. FALLING Recent data shows the name is currently falling.