Maria egiziaca (Saint Mary of Egypt) is an opera in a single three-episode act by the Italian composer Ottorino Respighi.

The libretto, by Claudio Guastalla, is based on a Medieval life of Saint Mary of Egypt, contained in the translation into the vernacular of the Vitae Patrum written by Domenico Cavalca.

[2] Maria egiziaca is scored for the following instruments:[1] flute, oboe, 2 clarinets, bassoon, 2 horns, trumpet, 2 trombones, harpsichord (or piano), strings.

The prostitute Mary suddenly feels an overwhelming longing to travel to Jerusalem.

Here she repents her sins and an angel tells her to go to the desert where she lives in prayer until old age.