The Case of the Stuttering Pig is a 1937 Warner Bros. Looney Tunes animated cartoon directed by Frank Tashlin. The short was released on October 30, 1937, and stars Porky Pig and Petunia Pig.

The title is a parody of The Case of the Stuttering Bishop, a Perry Mason mystery that Warner Bros. had filmed earlier that year. This is the only cartoon where Petunia Pig appears as Porky's sister.

In the film, Porky, Petunia, and their siblings are the intended heirs of their recently deceased uncle. The family's lawyer uses a Dr. Jekyll-style potion to transform himself into a monster. He proceeds to capture most of the heirs, but he is trapped before managing to capture Porky.