Dax \dax\ as a boy's name is pronounced daks. It is of French origin. Place name; a town in southwestern France that dates from before the days of the Roman occupation. Familiar today as the name of a character on the TV show "Star Trek: Deep Space Nine".

Dax has 2 variant forms: Dack and Daxton.

Baby names that sound like Dax are Dex and Dix.