Rj is a distinctive boys' name in United States, ranking #6352 in 2001 with 11 recorded births. The name reached its all-time peak in 2021 with 33 births ranking #3478. Since 1996, the popularity has decreased by 35.3%. In 2001, approximately 1 in every 176,621 boys born was named Rj. STABLE Recent data shows the name is currently stable.