Dartagnan is a distinctive boys' name in United States, ranking #3033 in 2004 with 33 recorded births. The name reached its all-time peak in 1999 with 67 births ranking #1608. Since 1996, the popularity has increased by 175.0%. In 2004, approximately 1 in every 60,146 boys born was named Dartagnan. FALLING Recent data shows the name is currently falling.