The Three-Cornered Hat () is a novel written by Pedro Antonio de Alarcón in 1874. The story of a magistrate infatuated with a miller's faithful wife is set in the province of Granada.
The piece should be classified as a short story and it contains popular tradition with a linear plot line. The novel has a theatrical format and it has been compared with the Miguel de Cervantes novel Don Quijote.
The best -known adaptation is probably the ballet The Three-Cornered Hat with music by Manuel de Falla.
The Three-Cornered Hat has been adapted into: