Dartagnan is a distinctive boys' name in United States, ranking #4890 in 2020 with 19 recorded births. The name reached its all-time peak in 1999 with 67 births ranking #1608. Since 1996, the popularity has increased by 58.3%. In 2020, approximately 1 in every 90,793 boys born was named Dartagnan. FALLING Recent data shows the name is currently falling.