Hello how may I help you? Can you tell me who is the tallest person in the world Would you like me to find the tallest person that is alive right now, or the tallest to ever live? Right now Sultan Kosen is the tallest living person as of this date. Who's the tallest person ever The tallest person to ever have lived is Robert Pershing Wadlow. Ok thanks Would you like any more information? No thaf is it Great. I hope you have a great day. Bye