Dartagnan is a distinctive boys' name in United States, ranking #3703 in 2006 with 27 recorded births. The name reached its all-time peak in 1999 with 67 births ranking #1608. Since 1996, the popularity has increased by 125.0%. In 2006, approximately 1 in every 76,116 boys born was named Dartagnan. FALLING Recent data shows the name is currently falling.