La campana sommersa (The Sunken Bell) is an opera in four acts by Italian composer Ottorino Respighi.

Its libretto is by Claudio Guastalla, based on the play Die versunkene Glocke by German author Gerhart Hauptmann.

The fairy-tale world of Hauptmann's play inspired Respighi to create his most lavishly and imaginatively orchestrated operatic score, which frequently reminds the listener of his famous symphonic poems.

Since the opera's anti-hero Enrico is a bell maker, Respighi fills the music with many chiming and ringing effects.

In vain the priest tries to dissuade him: "It is easier that the bell submerged at the bottom of the lake rings", replies Enrico.