Justus is a distinctive girls' name in United States, ranking #4144 in 2001 with 30 recorded births. The name reached its all-time peak in 1996 with 39 births ranking #3054. Since 1996, the popularity has decreased by 23.1%. In 2001, approximately 1 in every 60,019 girls born was named Justus. FALLING Recent data shows the name is currently falling.