Dartagnan is a distinctive boys' name in United States, ranking #2260 in 2002 with 46 recorded births. The name reached its all-time peak in 1999 with 67 births ranking #1608. Since 1996, the popularity has increased by 283.3%. In 2002, approximately 1 in every 42,206 boys born was named Dartagnan. FALLING Recent data shows the name is currently falling.