Who Killed Who?
- Tahun: 1943
- Negara: United States of America
- Aliran: Animasi, Komedi, Misteri
- Studio: MGM Cartoon Studio, Metro-Goldwyn-Mayer
- Kata kunci: whodunit, murder investigation, live action and animation, short film
- Direktur: Tex Avery
- Pemeran: Robert Emmett O'Connor, Tex Avery, Sara Berner, Billy Bletcher, Richard Haydn, Kent Rogers