The Nightingale in the Mountains (Spanish: El ruiseñor de las cumbres) is a 1958 Spanish musical film directed by Antonio del Amo and starring Joselito, Roberto Camardiel and Dolores Villaespesa. Written by Jaime Garcia-Herranz with the original title of Once upon a time there was a shepherd (Spanish: Era una vez un pastor) it is the last film of what was called the Nightingale trilogy, which included The Little Nightingale (Spanish: El Pequeño Ruiseñor) (1956) and The Song of the Nightingale (Spanish: Saeta del ruiseñor) (1957).

The film's sets were designed by Enrique Alarcón. It was filmed in the Spanish locations of Alcalá de la Selva and Mora de Rubielos, as per the insistence of the writer, Jaime Garcia-Herranz, natural of Mora de Rubielos.