Darby is a distinctive girls' name in United States, ranking #751 in 1999 with 298 recorded births. The name reached its all-time peak in 1996 with 431 births ranking #542. Since 1996, the popularity has decreased by 30.9%. In 1999, approximately 1 in every 5,952 girls born was named Darby. STABLE Recent data shows the name is currently stable.