Obviously it is! Half of the negative arguments that I have seen say that It's just cheering for other sports, And though that is part of it, There's way more! Conditioning is brutal from what I've heard, You compete against other teams, And the stunts that they manage to pull off are far from easy. Dance is usually considered a sport, So I don't see why Cheer is any different. The definition of a sport is "an activity involving physical exertion and skill in which an individual or team competes against another or others for entertainment. " Cheer fits that description perfectly!