Dax is a moderately popular boys' name in United States, ranking #462 in 2021 with 647 recorded births. The name reached its all-time peak in 2019 with 749 births ranking #413. Since 1996, the popularity has increased by 1,194.0%. In 2021, approximately 1 in every 2,702 boys born was named Dax. FALLING Recent data shows the name is currently falling.