Dax is a distinctive boys' name in United States, ranking #1382 in 2003 with 97 recorded births. The name reached its all-time peak in 2019 with 749 births ranking #413. Since 1996, the popularity has increased by 94.0%. In 2003, approximately 1 in every 20,364 boys born was named Dax. FALLING Recent data shows the name is currently falling.