In 2025, 393 US boys were named Dax, making it the 692nd most common boys’ name of the year, down 51 places from #641 in 2024. That is 45 fewer than the 438 boys named Dax in 2024. Its best rank for boys was #413, reached in 2019. That year also had the most boys given the name: 749. For comparison, it was #551 in 2015 and unranked in 1950.
Social Security card records list Dax in 59 years of the 146 from 1880 to 2025, starting in 1967 with 10 babies. In all, 11,934 US babies have been given the name, 0.1% of them girls and 99.8% boys. Its busiest decade was the 2010s, with 5,007 babies named Dax.
Over the 10 years from 2016 to 2025, 5,985 US boys were named Dax; the busiest of those years was 2019, with 749. In 2025 that was about 1 in 4,346 of the boys in SSA’s list for the year.
Among the states, Dax ranked highest in Nebraska in 2025, at #304 for boys there. It was not in the top 100 of any state. Rarer spellings such as Daks are summarised on this page.