1940 in radio

	… 1930; 1931; 1932; 1933; 1934; 1935; 1936; ; 1937; 1938; 1939; 1940; 1941; 1942; 1943; ; 1944; 1945; 1946; 1947; 1948; 1949; 1950 …;
	In television 1937 1938 1939 1940 1941 1942 1943 In music 1937 1938 1939 1940 1941 1942 1943 In film 1937 1938 1939 1940 1941 1942 1943
	Art; Archaeology; Architecture; Literature; Music; Philosophy; Science; +...

The year 1940 saw a number of significant events in radio broadcasting history.