Justus is a distinctive boys' name in United States, ranking #1152 in 2021 with 174 recorded births. The name reached its all-time peak in 2007 with 300 births ranking #747. Since 1996, the popularity has decreased by 29.8%. In 2021, approximately 1 in every 10,047 boys born was named Justus. FALLING Recent data shows the name is currently falling.