Dartagnan is a distinctive boys' name in United States, ranking #2186 in 2001 with 47 recorded births. The name reached its all-time peak in 1999 with 67 births ranking #1608. Since 1996, the popularity has increased by 291.7%. In 2001, approximately 1 in every 41,337 boys born was named Dartagnan. FALLING Recent data shows the name is currently falling.