Darby is a distinctive girls' name in United States, ranking #1642 in 2009 with 136 recorded births. The name reached its all-time peak in 1996 with 431 births ranking #542. Since 1996, the popularity has decreased by 68.4%. In 2009, approximately 1 in every 13,506 girls born was named Darby. STABLE Recent data shows the name is currently stable.