well actually they named all of those himalayin (sp?) mountains k1, k2, k3 etc. but then once they found their actual names given by the natives, they renamed them. K2 was the only one that they couldnt find the ancient name for, so that is why it is called k2. So therefor, there kind of is a mountain called k3. Anyway, k2 is actually named after the people who named it, so they say. although I am sure they were aware of the mountain when coming up with the name