I don't think there are, and yet every year I seem to see the latest trend in jean shape or skirt length being touted as suiting everyone. Then, a couple of years later, everyone suddenly notices that e.g. skinny jeans or midi skirts actually don't work on the majority of bodies, and on it goes with another trend.
I think the styles I most often see being described as universally flattering are:
White shirt (not if you have large boobs or a bit of a tummy)
Little black dress (black isn't very forgiving to some skin tones)
Skinny jeans (terrible on pear shapes like me)
Maxi skirts (I think they're best on tall people - I just look like a pepper pot)
Voluminous prairie style dresses like that spotty Zara one from last year (they might be comfortable but they make most people look about three sizes bigger than they are)
I would like to be proved wrong though!