Lady Be Good may refer to:
Music Lady, Be Good (musical), a 1924 Broadway musical by George and Ira Gershwin "Oh, Lady Be Good!", a song from the musical Lady Be Good ... For Ella, a 1993 album by Tommy Flanagan
Film Lady Be Good (1928 film), a silent adaptation of the 1924 musical starring Dorothy Mackaill and Jack Mulhall Lady Be Good (1941 film), a musical starring Eleanor Powell
Other Lady Be Good (aircraft), an American B-24D Liberator bomber, of World War II, lost in 1943 in the Libyan desert after its first and only mission
See also Lady Behave!, a 1937 American film directed by Lloyd Corrigan