Hello how may I help you? Can you look up a world record now? I'd love to help. What can I assist you with this fine morning? Who is tallest person on earth? Do you mean the tallest person of all time or the tallest living person??? Who is living now. Robert Ladlow is the current tallest living person. How tall is this guy? He is 8 feet 11.1 inches Thanks for the help. You're welcome! Enjoy the day!