Aja is a distinctive girls' name in United States, ranking #1047 in 1999 with 194 recorded births. The name reached its all-time peak in 1996 with 246 births ranking #822. Since 1996, the popularity has decreased by 21.1%. In 1999, approximately 1 in every 9,143 girls born was named Aja. FALLING Recent data shows the name is currently falling.