Rj is a distinctive boys' name in United States, ranking #4032 in 2005 with 23 recorded births. The name reached its all-time peak in 2021 with 33 births ranking #3478. Since 1996, the popularity has increased by 35.3%. In 2005, approximately 1 in every 86,832 boys born was named Rj. STABLE Recent data shows the name is currently stable.