"Variant of Maddox"
The name Maddux is commonly a unisex name from the "Welsh" origin.
Maddux is a spelling variant of the English surname Maddox, which surname dictionaries derive from the Welsh personal name Madog. The name entered United States birth records as a given name in the 1990s, which fits the wider pattern of English surnames being adopted as first names rather than an older given-name tradition.
Maddox means "Fortunate, Lucky.".
The pronunciation of Maddux is MAD-uks.