RANKED: The 15 most powerful millennials in the world

With Sebastian Kurz expected to become Austria's next chancellor, Europe is about to have its first millennial leader.

The young generation, though, has already made itself known around the world.

Roughly defined as people born between 1980 and 2000, millennials have risen to influential roles in government, business, and activism.

Meet the most powerful millennials in the world, which we've ranked according to their actual and perceived power in the world: