For the past few years I've been dabbling in object-oriented languages like Python and Ruby, but the OOP concept never really meshed with me. Right now, I'm eager to learn something based on a different paradigm.
You can try PHP, its less specific coding like other languages like Java, In PHP you can create code without having to use Objects/Namespaces etc.
I prefer to program in OOP (MVC / DRM), I would really recommend you come to terms with some of its complexity because OOP is only logical programing paradigm.
Hpe you see my point but good luck any way.
Most OOP capable languages allow non-OOP style programming. I'd recommend C, PHP and JavaScript.
Haskell (a completely functional language with great ad-hoc polymorphism) and C (a low-level imperative language) are probably your top choices if you're looking to learn a non-OO language.
Lisp's (or Scheme's) functional paradigm is also a classic.
If you're looking a less-conventional paradigm, learn Prolog.