Bj is a distinctive boys' name in United States, ranking #7179 in 2005 with 10 recorded births. The name reached its all-time peak in 1996 with 15 births ranking #4200. Since 1996, the popularity has decreased by 33.3%. In 2005, approximately 1 in every 199,715 boys born was named Bj. RISING Recent data shows the name is currently rising.