Dax is a distinctive boys' name in United States, ranking #1375 in 1999 with 86 recorded births. The name reached its all-time peak in 2019 with 749 births ranking #413. Since 1996, the popularity has increased by 72.0%. In 1999, approximately 1 in every 22,327 boys born was named Dax. FALLING Recent data shows the name is currently falling.