Darby is a distinctive girls' name in United States, ranking #578 in 1997 with 401 recorded births. This places Darby in the top 4% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 1996 with 431 births ranking #542. In 1997, approximately 1 in every 4,341 girls born was named Darby. STABLE Recent data shows the name is currently stable.