Hello how may I help you? Who is the tallest person in the world? I need to know about your question more before I am successfully able to help. Did you mean tallest living person or the tallest person of all time? tallest living person please One moment, while I find that information for you. Sultan Kosen is the tallest man living as of now. He is 251 cm which is 8 feet and 2.8 inches. Do you wish to know more about this person? yes, where is he from? He is from Ankara, Turkey. Is the 12 foot record a deceased person? I can say with much confidence that the 12 foot record is held by a dinosaur during the Jurassic Period. haha very good. Anything else that I may help you with today? no, but thank you