This is a listing of all the animated shorts released by Warner Bros. under the Looney Tunes and Merrie Melodies banners between 1940 and 1949. A total of 307 shorts were released during the 1940s.

1940

A total of 40 shorts were released that year.

1941

From this year onward, story credits are fully implemented. 41 shorts were released for this year.

1942

This year marks the beginning of production of color Looney Tunes. For this year and the next, most would still be in black and white. 39 shorts were released for this year.

1943

The Blue Ribbon Merrie Melodies re-release program starts this year. Previous color Merrie Melodies shorts would be re-released with the original credits cut. In addition, four more Looney Tunes shorts were produced in 3-hue Technicolor. The series would go into full color the following year. 28 shorts were released for this year.

1944

From this year onward, all cartoons are under copyright and in 3-hue Technicolor. Leon Schlesinger sold his cartoon studio to Warner Bros. in 1944; Eddie Selzer took over as producer after Buckaroo Bugs was released.

1945

1946

1947

With the exceptions of A Pest in the House, Mexican Joyride and Catch as Cats Can, every non-Bugs Bunny cartoon released this year was ultimately reissued as a Blue Ribbon Merrie Melodies cartoon.

1948

1949