Hello how may I help you? Who is the tallest person in the world? Do you mean living person or of all time? The world record for both please. The tallest person alive is Sultan Kosen Robert Pershing Wadlow is the all time record holder Excellent! thank you Who Is the tallest person in china? That is Bao Xishun Wow that is awesome! thank you again You're welcome. Can I help with anything else No thanks! Ok. Have a great day You too!