Dartagnan is a distinctive boys' name in United States, ranking #5831 in 2018 with 15 recorded births. The name reached its all-time peak in 1999 with 67 births ranking #1608. Since 1996, the popularity has increased by 25.0%. In 2018, approximately 1 in every 121,032 boys born was named Dartagnan. FALLING Recent data shows the name is currently falling.