John Boyd Orr, 1st Baron Boyd-Orr (23 September 1880 – 25 June 1971), known as Sir John Boyd Orr from 1935 to 1949, was a Scottish teacher, doctor, biologist and politician who received the Nobel Peace Prize for his scientific research into nutrition and his work as the first Director-General of the United Nations Food and Agriculture Organization (FAO). He was the co-founder and the first President (1960–1971) of the World Academy of Art and Science (WAAS).