The 14 most powerful world leaders
To determine the ranking, we evaluated more than 100 of the most influential players in business, politics, entertainment, and tech, judging their influence by economic power, command, newsworthiness, and impact - a subjective measure that captures how important they are in their respective spheres (see our full methodology here).
US President Barack Obama headlines the list, followed by Chinese President Xi Jinping, Russian President Vladimir Putin, and German Chancellor Angela Merkel.
Here are the rest of the world's most powerful world leaders.
Editing by Alex Morrell with additional research by Andy Kiersz.