Justus is a distinctive girls' name in United States, ranking #3694 in 2000 with 35 recorded births. The name reached its all-time peak in 1996 with 39 births ranking #3054. Since 1996, the popularity has decreased by 10.3%. In 2000, approximately 1 in every 51,885 girls born was named Justus. FALLING Recent data shows the name is currently falling.