Guy Poulet, born January 21, 1924 in Avignon and died October 24, 2009 in Antibes, was a French mountaineer and diver. He was one, after the war, of the best climbers in the forest of Fontainebleau, the Bleau group, around the "master" Pierre Allain - he is nicknamed "the fat" because of his strong muscles.

Guy Poulet is a former professor of physical education and sports, international diving instructor (in 1993) and mountaineer. On August 4 and 5, 1945, he made the first crossing of the Aiguilles de Chamonix with Pierre Allain, from the Aiguille du Plan to the Grands Charmoz. He notably participated in the 3rd ascent of the Walker spur to the Grandes Jorasses on August 5, 1946 with Pierre Allain, René Ferlet and Jacques Poincenot. He was a member of the French expedition which successfully completed the south face of Aconcagua on February 25, 1954, where he lost several toes. The frostbite that he retained from this expedition, resulting in the loss of several toes, made him convert to diving. Professor of physical education and sports, holder of the 3rd degree state certificate of sports educator in diving, international instructor, he taught diving from 1957 to 1984 and directed the national technical commission of the FEESSM from 1976 to 1980.

In addition, Guy Poulet is, with Daniel Mercier, the founder of the ANMP. He was promoted to Officer of the Legion of Honor for his entire career. Guy Poulet is the author with Robert Barincou of the book "Diving, Knowledge and Technique" prefaced by Maurice Herzog, several times updated and republished.