Hello how may I help you? Who is the world's tallest man? The world's tallest man is Robert Pershing Wadlow How tall is he? 8 ft 11.1 in Wow. The tallest guy in my town is only 6 feet tall, He must have a different perspective on the world Different people - Different perspective too Was Mr. Wadlow always tall? Yes Poor kid. I bet he was bullied a lot Not at all