Rj is a distinctive boys' name in United States, ranking #7408 in 1998 with 8 recorded births. The name reached its all-time peak in 2021 with 33 births ranking #3478. Since 1996, the popularity has decreased by 52.9%. In 1998, approximately 1 in every 238,915 boys born was named Rj. STABLE Recent data shows the name is currently stable.