I wouldn't think so. You might have to get one that's made to fit you perfectly, since tall girls tend to go for the longer dresses. It might make you look taller. I'm about that height, and was wondering the same thing. I thought I would look like a sleeping bag. Lol
What's the style most will be wearing? I think anything will look great on you. If it is too long-have it shortened. The important thing is prom is an important fun thing for you. Try some dresses on with your friends and enjoy yourself. You can think about shoes that are stylish, can add height, and be sure they are comfortable. have fun! I did not get to go to my prom so enjoy it for me.