I am not sure which soup is common in the US and where each soup originated, but here are a few common sorts of soup in Belgium : pumpkin soup, tomato soup, cream (& mushroom) soup, green pea soup, onion soup, cucumber soup, mixed green vegetable soup (courgette, celery, parsley, etc.), nettle soup (well, maybe less common), carrot soup, etc.
Some modern recipes are quite original. For instance, there is a Belgian organic "fastfood" chain that serves "spinach and Boursin (the sotf herb cheese) soup".
I noticed that corn soup and potato soup were common in Japan. I guess it is an American import, as I almost haven't seen them in Europe.