Mario Spinetti (1848–1925) was an Italian painter, whose works depict mythologic, Neo-Pompeian, and sacred subjects. He was born and resident in Rome. Among his works: a half-figure, Lidia, in 1881 in Milan. At the 1883 Exposition of Fine Arts in Rome, he exhibited a painting titled: Virginibus puerisque canto. In 1884 in Turin, he exhibited: Marriage in the 16th century. In 1887, in Venice, he exhibited: . In 1899, he painted frescoes of Sain Zaccaria, John the Baptist, and Elisabeth and Faith and Charity in the apse of the church of San Giovanni Battista dei Genovesi in Rome.