"Variant of Desmond"
The name Dez is commonly a male name from the "Irish" origin.
Dez is a short form of the Irish name Desmond, and it is also written Des. It is used as a nickname before being given as a name in its own right, which fits its comparatively recent appearance as a standalone given name in United States records.
Desmond means "From South Munster.".
The pronunciation of Dez is DEZ.