Dartagnan is a distinctive boys' name in United States, ranking #4354 in 2017 with 23 recorded births. The name reached its all-time peak in 1999 with 67 births ranking #1608. Since 1996, the popularity has increased by 91.7%. In 2017, approximately 1 in every 80,449 boys born was named Dartagnan. FALLING Recent data shows the name is currently falling.