Dartagnan is a distinctive boys' name in United States, ranking #4462 in 2009 with 22 recorded births. The name reached its all-time peak in 1999 with 67 births ranking #1608. Since 1996, the popularity has increased by 83.3%. In 2009, approximately 1 in every 90,150 boys born was named Dartagnan. FALLING Recent data shows the name is currently falling.