The 'Twilight' actor - who is dating his co-star Kristen Stewart - would "prohibit" those with a lack of personality in his ideal world and force them to spend time behind bars to learn how to be "creative".
Asked how he would run the world if he was king, he said: "I'd prohibit boring people. In my opinion there is nothing worse.
"The people who were boring should be in prison and be forced to learn to be creative with the other prisoners."
Meanwhile, the 25-year-old star also claimed he would love to discover a beautiful area that wasn't overpopulated and name it "S**t City" in the hope of putting other people off the idea of visiting so he could enjoy it all to himself.
Robert added in an interview with German magazine Bravo: "I would find my own city called 'S**t City'. With a name so daunting that no one would want to live there for anything.
"But it would be as pretty as the Fiji Islands - a haven just for me!"