Abbreviation of Nicholas; son of Nicholas
Nyxon is a modern creative spelling of the surname Nixon. It ultimately derives from the medieval given name Nick, a diminutive of Nicholas, meaning 'victory of the people'.
Less common today
Nyxon isn't in the latest US Top 1000. It last peaked at #5,763 in 2018.
US births per 5-year period, 1990βpresent (SSA data).