Son of Madoc
A modern spelling variation of the Welsh name Maddox, which is derived from the personal name Madoc. The root name Madoc is historically associated with the Welsh word for 'fortunate' or 'beneficent'.
Less common today
Maddoxx isn't in the latest US Top 1000. It last peaked at #7,022 in 2015.
US births per 5-year period, 1990βpresent (SSA data).