Justus is a distinctive girls' name in United States, ranking #6037 in 2011 with 22 recorded births. The name reached its all-time peak in 1996 with 39 births ranking #3054. Since 1996, the popularity has decreased by 43.6%. In 2011, approximately 1 in every 79,946 girls born was named Justus. FALLING Recent data shows the name is currently falling.