Justus is a distinctive boys' name in United States, ranking #966 in 2018 with 215 recorded births. The name reached its all-time peak in 2007 with 300 births ranking #747. Since 1996, the popularity has decreased by 13.3%. In 2018, approximately 1 in every 8,444 boys born was named Justus. FALLING Recent data shows the name is currently falling.