Justus is a distinctive girls' name in United States, ranking #4625 in 2009 with 32 recorded births. The name reached its all-time peak in 1996 with 39 births ranking #3054. Since 1996, the popularity has decreased by 17.9%. In 2009, approximately 1 in every 57,402 girls born was named Justus. FALLING Recent data shows the name is currently falling.