Justus is a distinctive girls' name in United States, ranking #5436 in 2017 with 24 recorded births. The name reached its all-time peak in 1996 with 39 births ranking #3054. Since 1996, the popularity has decreased by 38.5%. In 2017, approximately 1 in every 71,912 girls born was named Justus. FALLING Recent data shows the name is currently falling.