Robert Muller

• Robert Muller , Belgian-French United Nations civil servant
• Robert Muller , German-born British screenwriter
• Robert Mueller, American Director of the FBI and special counsel
• Bobby Muller, American peace activist
• Robert Müller , German ice hockey goaltender
• Robert Müller , German footballer
• Robert Enrique Muller, official photographer for the United States Navy

  Other surnames

• Moeller, a surname
• Moller, a surname
• Mueller
• Müller