Dax is a distinctive boys' name in England & Wales, ranking #2039 in 2011 with 10 recorded births. This places Dax in the top 34% 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 2011, approximately 1 in every 34,584 boys born was named Dax. FALLING Recent data shows the name is currently falling.