Darby is a distinctive girls' name in United States, ranking #1863 in 2015 with 110 recorded births. The name reached its all-time peak in 1996 with 431 births ranking #542. Since 1996, the popularity has decreased by 74.5%. In 2015, approximately 1 in every 16,224 girls born was named Darby. STABLE Recent data shows the name is currently stable.