Hello how may I help you? Who is the oldest person of all time I can help you find the oldest person of all time. One moment while I search my records Thank you The oldest person of all time was Jeanne Calment. She lived to be 122! Who was the oldest man of all time? Thank you for that information The oldest man of all time was Masazo Nanako That's all Certainly. Need anything else? Alright. Bye for now goodbye Remember I am always here to help with world records!