Madden is just a surname to me, but as a fn, it sounds like a trendy cross between the ultra-trendy
Madison &
Maddox. NMSAA. And isn't there a football video game called "Madden NFL"? Any time I see Madden, I assume the parents are football and/or video game addicts. Also, "madden" is a verb, and one can be maddened (madden - 'to enflame with passion). :-/