The men's discus throw was one of six throwing events on the Athletics at the 1908 Summer Olympics programme in London. The competition was held on July 16, 1908. 42 throwers from eleven nations competed. NOCs could enter up to 12 athletes. The event was won by Martin Sheridan of the United States, his second consecutive victory in the event (third if the 1906 Intercalated Games are included). The Americans completed their first sweep in the discus throw, with Merritt Giffin taking silver and Bill Horr bronze.