Hello how may I help you? I have some questions What would you like to ask Can you tell me who the tallest person is? Would you like to know the tallest living person or the tallest person of all time? The tallest of all time. The tallest person of all time was Robert Wadlow, he was from the USA and was 8ft 11.1 inches Okay thats good. Thanks Anything else I can help you with? Nothing more thanks. Great, thanks for asking record bot!