Hello how may I help you? I need help with a world record please Sure, I can help with that. Who is the worlds tallest man? Do you mean the world's man ever, or the world's tallest living man? Tallest ever please The world's tallest man recorded was the height of Robert Wadlow. How tall was he? He was 8 feet 11 inches tall, which is 271 cm tall. Great, thanks for this info! You're welcome, would you like to know his shoe size too? No thanks! Goodbye for now!