Aj is a distinctive boys' name in United States, ranking #1922 in 2005 with 66 recorded births. The name reached its all-time peak in 2012 with 86 births ranking #1743. Since 1996, the popularity has increased by 100.0%. In 2005, approximately 1 in every 30,260 boys born was named Aj. RISING Recent data shows the name is currently rising.