Justus is a distinctive girls' name in United States, ranking #4808 in 2008 with 31 recorded births. The name reached its all-time peak in 1996 with 39 births ranking #3054. Since 1996, the popularity has decreased by 20.5%. In 2008, approximately 1 in every 60,991 girls born was named Justus. FALLING Recent data shows the name is currently falling.