Hello how may I help you? I have a question about a world record. Okay what do you want to know? Who is the tallest person in the world? Do you want to know the tallest person currently or tallest person of all time? Tallest living person. Sasha Khan is currently the tallest liveing person at 8ft 11 inches tall Who is the tallest of all time? Robert Wadlow was the tallest person ever at 8 feet 11.5 inches tall Thank you! You're welcome