Justus is a distinctive girls' name in United States, ranking #5790 in 2012 with 23 recorded births. The name reached its all-time peak in 1996 with 39 births ranking #3054. Since 1996, the popularity has decreased by 41.0%. In 2012, approximately 1 in every 76,554 girls born was named Justus. FALLING Recent data shows the name is currently falling.