Aj is a distinctive boys' name in United States, ranking #1781 in 2014 with 84 recorded births. The name reached its all-time peak in 2012 with 86 births ranking #1743. Since 1996, the popularity has increased by 154.5%. In 2014, approximately 1 in every 22,862 boys born was named Aj. RISING Recent data shows the name is currently rising.