Dartagnan is a distinctive boys' name in United States, ranking #3710 in 2011 with 28 recorded births. The name reached its all-time peak in 1999 with 67 births ranking #1608. Since 1996, the popularity has increased by 133.3%. In 2011, approximately 1 in every 67,821 boys born was named Dartagnan. FALLING Recent data shows the name is currently falling.