Darby is a distinctive boys' name in United States, ranking #2915 in 2012 with 40 recorded births. The name reached its all-time peak in 2003 with 46 births ranking #2319. Since 1996, the popularity has increased by 21.2%. In 2012, approximately 1 in every 47,416 boys born was named Darby. FALLING Recent data shows the name is currently falling.