This name is borne by Keanu Reeves' character Ted "Theodore" Logan in 'Bill and Ted's Excellent Adventure' and the sequel, 'Bill and Ted's Bogus Journey.'
Not only is Ted the name of Nymphadora Tonks' father in the Harry Potter series, but *SPOILERS AHEAD* it is also the name of Remus Lupin and Nymphadora's son in Deathly Hallows, named after his newly late grandfather.
I hate this name with a flaming passion. I can't stand Theodore either, but that old-fashioned and pompous-sounding name is always shortened to this annoying little name that sounds quite youthful and still like the name of an old guy, paradoxically. This name isn't exactly associated with respectable people either. There's the serial killer creep Ted Bundy, but I don't actually mind THAT as much as I do mind the fact that this is the name of the utterly obnoxious, misogynous, racist idiot Ted Nugent. I say this name should just be buried already. The full form Theodore sounds too officious and pompous, whereas Ted doesn't sound very mature.