Richard Sorge (October 4, 1895 - November 7, 1944) was a German journalist and Soviet military intelligence officer, active before and during World War II, working undercover as a German journalist in both Nazi Germany and the Empire of Japan. His codename was "Ramsay".

A number of famous personalities considered him one of the most accomplished spies. Sorge is most famous for his service in Japan in 1940 and 1941, when he provided information about Adolf Hitler's plan to attack the Soviet Union. In mid-September 1941, he informed the Soviets that Japan would not attack the Soviet Union in the near future.