Dax is a distinctive boys' name in England & Wales, ranking #2435 in 2007 with 7 recorded births. This places Dax in the top 43% of ranked UK boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2021 with 33 births ranking #907. In 2007, approximately 1 in every 47,336 boys born was named Dax. FALLING Recent data shows the name is currently falling.